[PATCH] counter: microchip-tcb-capture: check the correct variable

[PATCH] counter: microchip-tcb-capture: check the correct variable

[Dan Carpenter]

This should be testing "regmap" instead of "priv->regmap".  The
"priv->regmap" variable is always zero so it's not an error pointer.

Fixes: 106b104137fd ("counter: Add microchip TCB capture counter")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
The commit 106b104137fd ("counter: Add microchip TCB capture counter")
doesn't use the correct patch prefix.  This is a common mistake for the
the first commit which adds the driver.  There is no kernel wide
standard for patch prefixes so it's difficult for people sending fixes
to know the correct prefix should be.

 drivers/counter/microchip-tcb-capture.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/counter/microchip-tcb-capture.c b/drivers/counter/microchip-tcb-capture.c
index f7b7743ddb94..b7b252c5addf 100644
--- a/drivers/counter/microchip-tcb-capture.c
+++ b/drivers/counter/microchip-tcb-capture.c
@@ -320,8 +320,8 @@ static int mchp_tc_probe(struct platform_device *pdev)
 	}
 
 	regmap = syscon_node_to_regmap(np->parent);
-	if (IS_ERR(priv->regmap))
-		return PTR_ERR(priv->regmap);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
 
 	/* max. channels number is 2 when in QDEC mode */
 	priv->num_channels = of_property_count_u32_elems(np, "reg");
-- 
2.27.0

Re: [PATCH] counter: microchip-tcb-capture: check the correct variable

[William Breathitt Gray]

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On Mon, Jul 27, 2020 at 02:23:16PM +0300, Dan Carpenter wrote:
> This should be testing "regmap" instead of "priv->regmap".  The
> "priv->regmap" variable is always zero so it's not an error pointer.
> 
> Fixes: 106b104137fd ("counter: Add microchip TCB capture counter")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>

> ---
> The commit 106b104137fd ("counter: Add microchip TCB capture counter")
> doesn't use the correct patch prefix.  This is a common mistake for the
> the first commit which adds the driver.  There is no kernel wide
> standard for patch prefixes so it's difficult for people sending fixes
> to know the correct prefix should be.
> 
>  drivers/counter/microchip-tcb-capture.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/counter/microchip-tcb-capture.c b/drivers/counter/microchip-tcb-capture.c
> index f7b7743ddb94..b7b252c5addf 100644
> --- a/drivers/counter/microchip-tcb-capture.c
> +++ b/drivers/counter/microchip-tcb-capture.c
> @@ -320,8 +320,8 @@ static int mchp_tc_probe(struct platform_device *pdev)
>  	}
>  
>  	regmap = syscon_node_to_regmap(np->parent);
> -	if (IS_ERR(priv->regmap))
> -		return PTR_ERR(priv->regmap);
> +	if (IS_ERR(regmap))
> +		return PTR_ERR(regmap);
>  
>  	/* max. channels number is 2 when in QDEC mode */
>  	priv->num_channels = of_property_count_u32_elems(np, "reg");
> -- 
> 2.27.0
> 

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Re: [PATCH] counter: microchip-tcb-capture: check the correct variable

[Jonathan Cameron]

On Mon, 27 Jul 2020 08:28:25 -0400
William Breathitt Gray <vilhelm.gray@gmail.com> wrote:

> On Mon, Jul 27, 2020 at 02:23:16PM +0300, Dan Carpenter wrote:
> > This should be testing "regmap" instead of "priv->regmap".  The
> > "priv->regmap" variable is always zero so it's not an error pointer.
> > 
> > Fixes: 106b104137fd ("counter: Add microchip TCB capture counter")
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>  
> 
> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Seems I applied this one a while back but never replied to this thread.
Sorry about that!

Jonathan

> 
> > ---
> > The commit 106b104137fd ("counter: Add microchip TCB capture counter")
> > doesn't use the correct patch prefix.  This is a common mistake for the
> > the first commit which adds the driver.  There is no kernel wide
> > standard for patch prefixes so it's difficult for people sending fixes
> > to know the correct prefix should be.
> > 
> >  drivers/counter/microchip-tcb-capture.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/counter/microchip-tcb-capture.c b/drivers/counter/microchip-tcb-capture.c
> > index f7b7743ddb94..b7b252c5addf 100644
> > --- a/drivers/counter/microchip-tcb-capture.c
> > +++ b/drivers/counter/microchip-tcb-capture.c
> > @@ -320,8 +320,8 @@ static int mchp_tc_probe(struct platform_device *pdev)
> >  	}
> >  
> >  	regmap = syscon_node_to_regmap(np->parent);
> > -	if (IS_ERR(priv->regmap))
> > -		return PTR_ERR(priv->regmap);
> > +	if (IS_ERR(regmap))
> > +		return PTR_ERR(regmap);
> >  
> >  	/* max. channels number is 2 when in QDEC mode */
> >  	priv->num_channels = of_property_count_u32_elems(np, "reg");
> > -- 
> > 2.27.0
> >