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* [PATCH] s390/cpum_cf: Use kmalloc_array() in merge_attr()
@ 2016-09-03 13:27 ` SF Markus Elfring
  0 siblings, 0 replies; 4+ messages in thread
From: SF Markus Elfring @ 2016-09-03 13:27 UTC (permalink / raw)
  To: linux-s390, Heiko Carstens, Hendrik Brückner, Martin Schwidefsky
  Cc: LKML, kernel-janitors, Julia Lawall, Paolo Bonzini

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 3 Sep 2016 15:17:45 +0200

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus reuse the corresponding function "kmalloc_array".

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 arch/s390/kernel/perf_cpum_cf_events.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
index 4554a4b..0d6340b 100644
--- a/arch/s390/kernel/perf_cpum_cf_events.c
+++ b/arch/s390/kernel/perf_cpum_cf_events.c
@@ -274,7 +274,7 @@ static __init struct attribute **merge_attr(struct attribute **a,
 		j++;
 	j++;
 
-	new = kmalloc(sizeof(struct attribute *) * j, GFP_KERNEL);
+	new = kmalloc_array(j, sizeof(*new), GFP_KERNEL);
 	if (!new)
 		return NULL;
 	j = 0;
-- 
2.9.3

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH] s390/cpum_cf: Use kmalloc_array() in merge_attr()
@ 2016-09-03 13:27 ` SF Markus Elfring
  0 siblings, 0 replies; 4+ messages in thread
From: SF Markus Elfring @ 2016-09-03 13:27 UTC (permalink / raw)
  To: linux-s390, Heiko Carstens, Hendrik Brückner, Martin Schwidefsky
  Cc: LKML, kernel-janitors, Julia Lawall, Paolo Bonzini

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 3 Sep 2016 15:17:45 +0200

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus reuse the corresponding function "kmalloc_array".

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 arch/s390/kernel/perf_cpum_cf_events.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
index 4554a4b..0d6340b 100644
--- a/arch/s390/kernel/perf_cpum_cf_events.c
+++ b/arch/s390/kernel/perf_cpum_cf_events.c
@@ -274,7 +274,7 @@ static __init struct attribute **merge_attr(struct attribute **a,
 		j++;
 	j++;
 
-	new = kmalloc(sizeof(struct attribute *) * j, GFP_KERNEL);
+	new = kmalloc_array(j, sizeof(*new), GFP_KERNEL);
 	if (!new)
 		return NULL;
 	j = 0;
-- 
2.9.3


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH] s390/cpum_cf: Use kmalloc_array() in merge_attr()
  2016-09-03 13:27 ` SF Markus Elfring
@ 2016-09-05 11:34   ` Hendrik Brueckner
  -1 siblings, 0 replies; 4+ messages in thread
From: Hendrik Brueckner @ 2016-09-05 11:34 UTC (permalink / raw)
  To: SF Markus Elfring
  Cc: linux-s390, Heiko Carstens, Hendrik Brückner,
	Martin Schwidefsky, LKML, kernel-janitors, Julia Lawall,
	Paolo Bonzini

On Sat, Sep 03, 2016 at 03:27:42PM +0200, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 3 Sep 2016 15:17:45 +0200
> 
> * A multiplication for the size determination of a memory allocation
>   indicated that an array data structure should be processed.
>   Thus reuse the corresponding function "kmalloc_array".
> 
> * Replace the specification of a data type by a pointer dereference
>   to make the corresponding size determination a bit safer according to
>   the Linux coding style convention.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
>  arch/s390/kernel/perf_cpum_cf_events.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
> index 4554a4b..0d6340b 100644
> --- a/arch/s390/kernel/perf_cpum_cf_events.c
> +++ b/arch/s390/kernel/perf_cpum_cf_events.c
> @@ -274,7 +274,7 @@ static __init struct attribute **merge_attr(struct attribute **a,
>  		j++;
>  	j++;
> 
> -	new = kmalloc(sizeof(struct attribute *) * j, GFP_KERNEL);
> +	new = kmalloc_array(j, sizeof(*new), GFP_KERNEL);
>  	if (!new)
>  		return NULL;
>  	j = 0;
> -- 

Looks good to me. Thanks.

Acked-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] s390/cpum_cf: Use kmalloc_array() in merge_attr()
@ 2016-09-05 11:34   ` Hendrik Brueckner
  0 siblings, 0 replies; 4+ messages in thread
From: Hendrik Brueckner @ 2016-09-05 11:34 UTC (permalink / raw)
  To: SF Markus Elfring
  Cc: linux-s390, Heiko Carstens, Hendrik Brückner,
	Martin Schwidefsky, LKML, kernel-janitors, Julia Lawall,
	Paolo Bonzini

On Sat, Sep 03, 2016 at 03:27:42PM +0200, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 3 Sep 2016 15:17:45 +0200
> 
> * A multiplication for the size determination of a memory allocation
>   indicated that an array data structure should be processed.
>   Thus reuse the corresponding function "kmalloc_array".
> 
> * Replace the specification of a data type by a pointer dereference
>   to make the corresponding size determination a bit safer according to
>   the Linux coding style convention.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
>  arch/s390/kernel/perf_cpum_cf_events.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
> index 4554a4b..0d6340b 100644
> --- a/arch/s390/kernel/perf_cpum_cf_events.c
> +++ b/arch/s390/kernel/perf_cpum_cf_events.c
> @@ -274,7 +274,7 @@ static __init struct attribute **merge_attr(struct attribute **a,
>  		j++;
>  	j++;
> 
> -	new = kmalloc(sizeof(struct attribute *) * j, GFP_KERNEL);
> +	new = kmalloc_array(j, sizeof(*new), GFP_KERNEL);
>  	if (!new)
>  		return NULL;
>  	j = 0;
> -- 

Looks good to me. Thanks.

Acked-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2016-09-05 11:34 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2016-09-03 13:27 [PATCH] s390/cpum_cf: Use kmalloc_array() in merge_attr() SF Markus Elfring
2016-09-03 13:27 ` SF Markus Elfring
2016-09-05 11:34 ` Hendrik Brueckner
2016-09-05 11:34   ` Hendrik Brueckner

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