[PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

From: Julia Lawall <julia@diku.dk>

The error handling code prior to get_clk also needs to call kfree.  The
label name is changed to reflect its more general use.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 sound/soc/mxs/mxs-saif.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 0b3adae..4a17bc8 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -523,8 +523,10 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	if (!saif)
 		return -ENOMEM;
 
-	if (pdev->id >= ARRAY_SIZE(mxs_saif))
-		return -EINVAL;
+	if (pdev->id >= ARRAY_SIZE(mxs_saif)) {
+		ret = -EINVAL;
+		goto failed;
+	}
 	mxs_saif[pdev->id] = saif;
 
 	saif->clk = clk_get(&pdev->dev, NULL);
@@ -532,7 +534,7 @@ static int mxs_saif_probe(struct platform_device *pdev)
 		ret = PTR_ERR(saif->clk);
 		dev_err(&pdev->dev, "Cannot get the clock: %d\n",
 			ret);
-		goto failed_clk;
+		goto failed;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -625,7 +627,7 @@ failed_ioremap:
 	release_mem_region(res->start, resource_size(res));
 failed_get_resource:
 	clk_put(saif->clk);
-failed_clk:
+failed:
 	kfree(saif);
 
 	return ret;

[PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

From: Julia Lawall <julia@diku.dk>

The error handling code prior to get_clk also needs to call kfree.  The
label name is changed to reflect its more general use.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 sound/soc/mxs/mxs-saif.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 0b3adae..4a17bc8 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -523,8 +523,10 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	if (!saif)
 		return -ENOMEM;
 
-	if (pdev->id >= ARRAY_SIZE(mxs_saif))
-		return -EINVAL;
+	if (pdev->id >= ARRAY_SIZE(mxs_saif)) {
+		ret = -EINVAL;
+		goto failed;
+	}
 	mxs_saif[pdev->id] = saif;
 
 	saif->clk = clk_get(&pdev->dev, NULL);
@@ -532,7 +534,7 @@ static int mxs_saif_probe(struct platform_device *pdev)
 		ret = PTR_ERR(saif->clk);
 		dev_err(&pdev->dev, "Cannot get the clock: %d\n",
 			ret);
-		goto failed_clk;
+		goto failed;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -625,7 +627,7 @@ failed_ioremap:
 	release_mem_region(res->start, resource_size(res));
 failed_get_resource:
 	clk_put(saif->clk);
-failed_clk:
+failed:
 	kfree(saif);
 
 	return ret;

[PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

From: Julia Lawall <julia@diku.dk>

The error handling code prior to get_clk also needs to call kfree.  The
label name is changed to reflect its more general use.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 sound/soc/mxs/mxs-saif.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 0b3adae..4a17bc8 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -523,8 +523,10 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	if (!saif)
 		return -ENOMEM;
 
-	if (pdev->id >= ARRAY_SIZE(mxs_saif))
-		return -EINVAL;
+	if (pdev->id >= ARRAY_SIZE(mxs_saif)) {
+		ret = -EINVAL;
+		goto failed;
+	}
 	mxs_saif[pdev->id] = saif;
 
 	saif->clk = clk_get(&pdev->dev, NULL);
@@ -532,7 +534,7 @@ static int mxs_saif_probe(struct platform_device *pdev)
 		ret = PTR_ERR(saif->clk);
 		dev_err(&pdev->dev, "Cannot get the clock: %d\n",
 			ret);
-		goto failed_clk;
+		goto failed;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -625,7 +627,7 @@ failed_ioremap:
 	release_mem_region(res->start, resource_size(res));
 failed_get_resource:
 	clk_put(saif->clk);
-failed_clk:
+failed:
 	kfree(saif);
 
 	return ret;

Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Wolfram Sang]

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On Sat, Aug 20, 2011 at 08:12:40AM +0200, Julia Lawall wrote:

> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
> index 0b3adae..4a17bc8 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -523,8 +523,10 @@ static int mxs_saif_probe(struct platform_device *pdev)
>  	if (!saif)
>  		return -ENOMEM;
>  
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif)) {
> +		ret = -EINVAL;
> +		goto failed;
> +	}
>  	mxs_saif[pdev->id] = saif;

Thanks, Julia. May I suggest to simple move the id-check before the
allocation?

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Wolfram Sang]

[-- Attachment #1.1: Type: text/plain, Size: 815 bytes --]

On Sat, Aug 20, 2011 at 08:12:40AM +0200, Julia Lawall wrote:

> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
> index 0b3adae..4a17bc8 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -523,8 +523,10 @@ static int mxs_saif_probe(struct platform_device *pdev)
>  	if (!saif)
>  		return -ENOMEM;
>  
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif)) {
> +		ret = -EINVAL;
> +		goto failed;
> +	}
>  	mxs_saif[pdev->id] = saif;

Thanks, Julia. May I suggest to simple move the id-check before the
allocation?

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Wolfram Sang]

[-- Attachment #1: Type: text/plain, Size: 815 bytes --]

On Sat, Aug 20, 2011 at 08:12:40AM +0200, Julia Lawall wrote:

> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
> index 0b3adae..4a17bc8 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -523,8 +523,10 @@ static int mxs_saif_probe(struct platform_device *pdev)
>  	if (!saif)
>  		return -ENOMEM;
>  
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif)) {
> +		ret = -EINVAL;
> +		goto failed;
> +	}
>  	mxs_saif[pdev->id] = saif;

Thanks, Julia. May I suggest to simple move the id-check before the
allocation?

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

[-- Attachment #2: Digital signature --]
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Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

From: Julia Lawall <julia@diku.dk>

Move the test on pdev->id before the kzalloc to avoid requiring kfree when
the test fails.  This fix was suggested by Wolfram Sang.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 0b3adae..e9a90e4 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -519,12 +519,11 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	struct mxs_saif *saif;
 	int ret = 0;
 
+	if (pdev->id >= ARRAY_SIZE(mxs_saif))
+		return -EINVAL;
 	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
 	if (!saif)
 		return -ENOMEM;
-
-	if (pdev->id >= ARRAY_SIZE(mxs_saif))
-		return -EINVAL;
 	mxs_saif[pdev->id] = saif;
 
 	saif->clk = clk_get(&pdev->dev, NULL);

Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

From: Julia Lawall <julia@diku.dk>

Move the test on pdev->id before the kzalloc to avoid requiring kfree when
the test fails.  This fix was suggested by Wolfram Sang.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 0b3adae..e9a90e4 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -519,12 +519,11 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	struct mxs_saif *saif;
 	int ret = 0;
 
+	if (pdev->id >= ARRAY_SIZE(mxs_saif))
+		return -EINVAL;
 	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
 	if (!saif)
 		return -ENOMEM;
-
-	if (pdev->id >= ARRAY_SIZE(mxs_saif))
-		return -EINVAL;
 	mxs_saif[pdev->id] = saif;
 
 	saif->clk = clk_get(&pdev->dev, NULL);

RE: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Dong Aisheng-B29396]

> -----Original Message-----
> From: Julia Lawall [mailto:julia@diku.dk]
> Sent: Saturday, August 20, 2011 11:19 PM
> To: Wolfram Sang
> Cc: Liam Girdwood; kernel-janitors@vger.kernel.org; Mark Brown; Jaroslav
> Kysela; Takashi Iwai; Dong Aisheng-B29396; alsa-devel@alsa-project.org;
> linux-kernel@vger.kernel.org
> Subject: Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree
> 
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree
> when the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> 0b3adae..e9a90e4 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -519,12 +519,11 @@ static int mxs_saif_probe(struct platform_device
> *pdev)
>  	struct mxs_saif *saif;
>  	int ret = 0;
> 
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> +		return -EINVAL;
>  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
>  	if (!saif)
>  		return -ENOMEM;
> -
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
>  	mxs_saif[pdev->id] = saif;
> 
>  	saif->clk = clk_get(&pdev->dev, NULL);

Thanks for the finding, Julia.
It's ok to me.

BTW I guess you may need to resend a new version patch instead of following it
in this mail thread. :)
If yes, one minus thing, add one blank line below the line of 'return -ENOMEM'
may look more comfortable.

Regards
Dong Aisheng

Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Dong Aisheng-B29396]

> -----Original Message-----
> From: Julia Lawall [mailto:julia@diku.dk]
> Sent: Saturday, August 20, 2011 11:19 PM
> To: Wolfram Sang
> Cc: Liam Girdwood; kernel-janitors@vger.kernel.org; Mark Brown; Jaroslav
> Kysela; Takashi Iwai; Dong Aisheng-B29396; alsa-devel@alsa-project.org;
> linux-kernel@vger.kernel.org
> Subject: Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree
> 
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree
> when the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> 0b3adae..e9a90e4 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -519,12 +519,11 @@ static int mxs_saif_probe(struct platform_device
> *pdev)
>  	struct mxs_saif *saif;
>  	int ret = 0;
> 
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> +		return -EINVAL;
>  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
>  	if (!saif)
>  		return -ENOMEM;
> -
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
>  	mxs_saif[pdev->id] = saif;
> 
>  	saif->clk = clk_get(&pdev->dev, NULL);

Thanks for the finding, Julia.
It's ok to me.

BTW I guess you may need to resend a new version patch instead of following it
in this mail thread. :)
If yes, one minus thing, add one blank line below the line of 'return -ENOMEM'
may look more comfortable.

Regards
Dong Aisheng

RE: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Dong Aisheng-B29396]

> -----Original Message-----
> From: Julia Lawall [mailto:julia@diku.dk]
> Sent: Saturday, August 20, 2011 11:19 PM
> To: Wolfram Sang
> Cc: Liam Girdwood; kernel-janitors@vger.kernel.org; Mark Brown; Jaroslav
> Kysela; Takashi Iwai; Dong Aisheng-B29396; alsa-devel@alsa-project.org;
> linux-kernel@vger.kernel.org
> Subject: Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree
> 
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree
> when the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> 0b3adae..e9a90e4 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -519,12 +519,11 @@ static int mxs_saif_probe(struct platform_device
> *pdev)
>  	struct mxs_saif *saif;
>  	int ret = 0;
> 
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> +		return -EINVAL;
>  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
>  	if (!saif)
>  		return -ENOMEM;
> -
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
>  	mxs_saif[pdev->id] = saif;
> 
>  	saif->clk = clk_get(&pdev->dev, NULL);

Thanks for the finding, Julia.
It's ok to me.

BTW I guess you may need to resend a new version patch instead of following it
in this mail thread. :)
If yes, one minus thing, add one blank line below the line of 'return -ENOMEM'
may look more comfortable.

Regards
Dong Aisheng

RE: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

On Sun, 21 Aug 2011, Dong Aisheng-B29396 wrote:

> > -----Original Message-----
> > From: Julia Lawall [mailto:julia@diku.dk]
> > Sent: Saturday, August 20, 2011 11:19 PM
> > To: Wolfram Sang
> > Cc: Liam Girdwood; kernel-janitors@vger.kernel.org; Mark Brown; Jaroslav
> > Kysela; Takashi Iwai; Dong Aisheng-B29396; alsa-devel@alsa-project.org;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree
> > 
> > From: Julia Lawall <julia@diku.dk>
> > 
> > Move the test on pdev->id before the kzalloc to avoid requiring kfree
> > when the test fails.  This fix was suggested by Wolfram Sang.
> > 
> > A simplified version of the semantic match that finds this problem is as
> > follows: (http://coccinelle.lip6.fr/)
> > 
> > // <smpl>
> > @@
> > identifier x;
> > expression E1!=0,E2,E3,E4;
> > statement S;
> > iterator I;
> > @@
> > 
> > (
> > if (...) { ... when != kfree(x)
> >                when != x = E3
> >                when != E3 = x
> > *  return ...;
> >  }
> > ... when != x = E2
> >     when != I(...,x,...) S
> > if (...) { ... when != x = E4
> >  kfree(x); ... return ...; }
> > )
> > // </smpl>
> > 
> > Signed-off-by: Julia Lawall <julia@diku.dk>
> > 
> > ---
> > diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> > 0b3adae..e9a90e4 100644
> > --- a/sound/soc/mxs/mxs-saif.c
> > +++ b/sound/soc/mxs/mxs-saif.c
> > @@ -519,12 +519,11 @@ static int mxs_saif_probe(struct platform_device
> > *pdev)
> >  	struct mxs_saif *saif;
> >  	int ret = 0;
> > 
> > +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> > +		return -EINVAL;
> >  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
> >  	if (!saif)
> >  		return -ENOMEM;
> > -
> > -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> > -		return -EINVAL;
> >  	mxs_saif[pdev->id] = saif;
> > 
> >  	saif->clk = clk_get(&pdev->dev, NULL);
> 
> Thanks for the finding, Julia.
> It's ok to me.
> 
> BTW I guess you may need to resend a new version patch instead of following it
> in this mail thread. :)
> If yes, one minus thing, add one blank line below the line of 'return -ENOMEM'
> may look more comfortable.

OK, I will do both.

Thanks,
julia

Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

On Sun, 21 Aug 2011, Dong Aisheng-B29396 wrote:

> > -----Original Message-----
> > From: Julia Lawall [mailto:julia@diku.dk]
> > Sent: Saturday, August 20, 2011 11:19 PM
> > To: Wolfram Sang
> > Cc: Liam Girdwood; kernel-janitors@vger.kernel.org; Mark Brown; Jaroslav
> > Kysela; Takashi Iwai; Dong Aisheng-B29396; alsa-devel@alsa-project.org;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree
> > 
> > From: Julia Lawall <julia@diku.dk>
> > 
> > Move the test on pdev->id before the kzalloc to avoid requiring kfree
> > when the test fails.  This fix was suggested by Wolfram Sang.
> > 
> > A simplified version of the semantic match that finds this problem is as
> > follows: (http://coccinelle.lip6.fr/)
> > 
> > // <smpl>
> > @@
> > identifier x;
> > expression E1!=0,E2,E3,E4;
> > statement S;
> > iterator I;
> > @@
> > 
> > (
> > if (...) { ... when != kfree(x)
> >                when != x = E3
> >                when != E3 = x
> > *  return ...;
> >  }
> > ... when != x = E2
> >     when != I(...,x,...) S
> > if (...) { ... when != x = E4
> >  kfree(x); ... return ...; }
> > )
> > // </smpl>
> > 
> > Signed-off-by: Julia Lawall <julia@diku.dk>
> > 
> > ---
> > diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> > 0b3adae..e9a90e4 100644
> > --- a/sound/soc/mxs/mxs-saif.c
> > +++ b/sound/soc/mxs/mxs-saif.c
> > @@ -519,12 +519,11 @@ static int mxs_saif_probe(struct platform_device
> > *pdev)
> >  	struct mxs_saif *saif;
> >  	int ret = 0;
> > 
> > +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> > +		return -EINVAL;
> >  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
> >  	if (!saif)
> >  		return -ENOMEM;
> > -
> > -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> > -		return -EINVAL;
> >  	mxs_saif[pdev->id] = saif;
> > 
> >  	saif->clk = clk_get(&pdev->dev, NULL);
> 
> Thanks for the finding, Julia.
> It's ok to me.
> 
> BTW I guess you may need to resend a new version patch instead of following it
> in this mail thread. :)
> If yes, one minus thing, add one blank line below the line of 'return -ENOMEM'
> may look more comfortable.

OK, I will do both.

Thanks,
julia

RE: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

On Sun, 21 Aug 2011, Dong Aisheng-B29396 wrote:

> > -----Original Message-----
> > From: Julia Lawall [mailto:julia@diku.dk]
> > Sent: Saturday, August 20, 2011 11:19 PM
> > To: Wolfram Sang
> > Cc: Liam Girdwood; kernel-janitors@vger.kernel.org; Mark Brown; Jaroslav
> > Kysela; Takashi Iwai; Dong Aisheng-B29396; alsa-devel@alsa-project.org;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [PATCH 3/4] sound/soc/mxs/mxs-saif.c: add missing kfree
> > 
> > From: Julia Lawall <julia@diku.dk>
> > 
> > Move the test on pdev->id before the kzalloc to avoid requiring kfree
> > when the test fails.  This fix was suggested by Wolfram Sang.
> > 
> > A simplified version of the semantic match that finds this problem is as
> > follows: (http://coccinelle.lip6.fr/)
> > 
> > // <smpl>
> > @@
> > identifier x;
> > expression E1!=0,E2,E3,E4;
> > statement S;
> > iterator I;
> > @@
> > 
> > (
> > if (...) { ... when != kfree(x)
> >                when != x = E3
> >                when != E3 = x
> > *  return ...;
> >  }
> > ... when != x = E2
> >     when != I(...,x,...) S
> > if (...) { ... when != x = E4
> >  kfree(x); ... return ...; }
> > )
> > // </smpl>
> > 
> > Signed-off-by: Julia Lawall <julia@diku.dk>
> > 
> > ---
> > diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> > 0b3adae..e9a90e4 100644
> > --- a/sound/soc/mxs/mxs-saif.c
> > +++ b/sound/soc/mxs/mxs-saif.c
> > @@ -519,12 +519,11 @@ static int mxs_saif_probe(struct platform_device
> > *pdev)
> >  	struct mxs_saif *saif;
> >  	int ret = 0;
> > 
> > +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> > +		return -EINVAL;
> >  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
> >  	if (!saif)
> >  		return -ENOMEM;
> > -
> > -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> > -		return -EINVAL;
> >  	mxs_saif[pdev->id] = saif;
> > 
> >  	saif->clk = clk_get(&pdev->dev, NULL);
> 
> Thanks for the finding, Julia.
> It's ok to me.
> 
> BTW I guess you may need to resend a new version patch instead of following it
> in this mail thread. :)
> If yes, one minus thing, add one blank line below the line of 'return -ENOMEM'
> may look more comfortable.

OK, I will do both.

Thanks,
julia

[PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

From: Julia Lawall <julia@diku.dk>

Move the test on pdev->id before the kzalloc to avoid requiring kfree when
the test fails.  This fix was suggested by Wolfram Sang.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 sound/soc/mxs/mxs-saif.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 0b3adae..ab453ca 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -519,12 +519,13 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	struct mxs_saif *saif;
 	int ret = 0;
 
+	if (pdev->id >= ARRAY_SIZE(mxs_saif))
+		return -EINVAL;
+
 	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
 	if (!saif)
 		return -ENOMEM;
 
-	if (pdev->id >= ARRAY_SIZE(mxs_saif))
-		return -EINVAL;
 	mxs_saif[pdev->id] = saif;
 
 	saif->clk = clk_get(&pdev->dev, NULL);

[PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

From: Julia Lawall <julia@diku.dk>

Move the test on pdev->id before the kzalloc to avoid requiring kfree when
the test fails.  This fix was suggested by Wolfram Sang.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 sound/soc/mxs/mxs-saif.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 0b3adae..ab453ca 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -519,12 +519,13 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	struct mxs_saif *saif;
 	int ret = 0;
 
+	if (pdev->id >= ARRAY_SIZE(mxs_saif))
+		return -EINVAL;
+
 	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
 	if (!saif)
 		return -ENOMEM;
 
-	if (pdev->id >= ARRAY_SIZE(mxs_saif))
-		return -EINVAL;
 	mxs_saif[pdev->id] = saif;
 
 	saif->clk = clk_get(&pdev->dev, NULL);

[PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Julia Lawall]

From: Julia Lawall <julia@diku.dk>

Move the test on pdev->id before the kzalloc to avoid requiring kfree when
the test fails.  This fix was suggested by Wolfram Sang.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 sound/soc/mxs/mxs-saif.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 0b3adae..ab453ca 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -519,12 +519,13 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	struct mxs_saif *saif;
 	int ret = 0;
 
+	if (pdev->id >= ARRAY_SIZE(mxs_saif))
+		return -EINVAL;
+
 	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
 	if (!saif)
 		return -ENOMEM;
 
-	if (pdev->id >= ARRAY_SIZE(mxs_saif))
-		return -EINVAL;
 	mxs_saif[pdev->id] = saif;
 
 	saif->clk = clk_get(&pdev->dev, NULL);

Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Wolfram Sang]

[-- Attachment #1: Type: text/plain, Size: 1004 bytes --]

On Sun, Aug 21, 2011 at 01:18:45PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>

Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Wolfram Sang]

[-- Attachment #1.1: Type: text/plain, Size: 1004 bytes --]

On Sun, Aug 21, 2011 at 01:18:45PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>

Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Wolfram Sang]

[-- Attachment #1: Type: text/plain, Size: 1004 bytes --]

On Sun, Aug 21, 2011 at 01:18:45PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>

Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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RE: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Dong Aisheng-B29396]

> -----Original Message-----
> From: Julia Lawall [mailto:julia@diku.dk]
> Sent: Sunday, August 21, 2011 7:19 PM
> To: Dong Aisheng-B29396
> Cc: Wolfram Sang; Liam Girdwood; kernel-janitors@vger.kernel.org; Mark
> Brown; Jaroslav Kysela; Takashi Iwai; alsa-devel@alsa-project.org; linux-
> kernel@vger.kernel.org
> Subject: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree
> 
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree
> when the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
>  sound/soc/mxs/mxs-saif.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> 0b3adae..ab453ca 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -519,12 +519,13 @@ static int mxs_saif_probe(struct platform_device
> *pdev)
>  	struct mxs_saif *saif;
>  	int ret = 0;
> 
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> +		return -EINVAL;
> +
>  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
>  	if (!saif)
>  		return -ENOMEM;
> 
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
>  	mxs_saif[pdev->id] = saif;
> 
>  	saif->clk = clk_get(&pdev->dev, NULL);

Acked-by: Dong Aisheng <b29396@freescale.com>

Regards
Dong Aisheng

Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Dong Aisheng-B29396]

> -----Original Message-----
> From: Julia Lawall [mailto:julia@diku.dk]
> Sent: Sunday, August 21, 2011 7:19 PM
> To: Dong Aisheng-B29396
> Cc: Wolfram Sang; Liam Girdwood; kernel-janitors@vger.kernel.org; Mark
> Brown; Jaroslav Kysela; Takashi Iwai; alsa-devel@alsa-project.org; linux-
> kernel@vger.kernel.org
> Subject: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree
> 
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree
> when the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
>  sound/soc/mxs/mxs-saif.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> 0b3adae..ab453ca 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -519,12 +519,13 @@ static int mxs_saif_probe(struct platform_device
> *pdev)
>  	struct mxs_saif *saif;
>  	int ret = 0;
> 
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> +		return -EINVAL;
> +
>  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
>  	if (!saif)
>  		return -ENOMEM;
> 
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
>  	mxs_saif[pdev->id] = saif;
> 
>  	saif->clk = clk_get(&pdev->dev, NULL);

Acked-by: Dong Aisheng <b29396@freescale.com>

Regards
Dong Aisheng

RE: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Dong Aisheng-B29396]

> -----Original Message-----
> From: Julia Lawall [mailto:julia@diku.dk]
> Sent: Sunday, August 21, 2011 7:19 PM
> To: Dong Aisheng-B29396
> Cc: Wolfram Sang; Liam Girdwood; kernel-janitors@vger.kernel.org; Mark
> Brown; Jaroslav Kysela; Takashi Iwai; alsa-devel@alsa-project.org; linux-
> kernel@vger.kernel.org
> Subject: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree
> 
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree
> when the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
>  sound/soc/mxs/mxs-saif.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index
> 0b3adae..ab453ca 100644
> --- a/sound/soc/mxs/mxs-saif.c
> +++ b/sound/soc/mxs/mxs-saif.c
> @@ -519,12 +519,13 @@ static int mxs_saif_probe(struct platform_device
> *pdev)
>  	struct mxs_saif *saif;
>  	int ret = 0;
> 
> +	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> +		return -EINVAL;
> +
>  	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
>  	if (!saif)
>  		return -ENOMEM;
> 
> -	if (pdev->id >= ARRAY_SIZE(mxs_saif))
> -		return -EINVAL;
>  	mxs_saif[pdev->id] = saif;
> 
>  	saif->clk = clk_get(&pdev->dev, NULL);

Acked-by: Dong Aisheng <b29396@freescale.com>

Regards
Dong Aisheng

Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Liam Girdwood]

On 21/08/11 12:18, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
>

Acked-by: Liam Girdwood <lrg@ti.com>

Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Liam Girdwood]

On 21/08/11 12:18, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
>

Acked-by: Liam Girdwood <lrg@ti.com>

Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Liam Girdwood]

On 21/08/11 12:18, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> expression E1!=0,E2,E3,E4;
> statement S;
> iterator I;
> @@
> 
> (
> if (...) { ... when != kfree(x)
>                when != x = E3
>                when != E3 = x
> *  return ...;
>  }
> ... when != x = E2
>     when != I(...,x,...) S
> if (...) { ... when != x = E4
>  kfree(x); ... return ...; }
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
>

Acked-by: Liam Girdwood <lrg@ti.com>

Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Mark Brown]

On Sun, Aug 21, 2011 at 01:18:45PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 

Applied, thanks.

Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Mark Brown]

On Sun, Aug 21, 2011 at 01:18:45PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 

Applied, thanks.

Re: [PATCH] sound/soc/mxs/mxs-saif.c: add missing kfree

[Mark Brown]

On Sun, Aug 21, 2011 at 01:18:45PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Move the test on pdev->id before the kzalloc to avoid requiring kfree when
> the test fails.  This fix was suggested by Wolfram Sang.
> 

Applied, thanks.