[PATCH] drm: logicvc: Fix uninitialized variable in probe

[PATCH] drm: logicvc: Fix uninitialized variable in probe

[Dan Carpenter]

The "regmap" is supposed to be initialized to NULL but it's used
without being initialized.

Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/gpu/drm/logicvc/logicvc_drm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/logicvc/logicvc_drm.c b/drivers/gpu/drm/logicvc/logicvc_drm.c
index df1805cf0f95..0b983a33f9ff 100644
--- a/drivers/gpu/drm/logicvc/logicvc_drm.c
+++ b/drivers/gpu/drm/logicvc/logicvc_drm.c
@@ -298,7 +298,7 @@ static int logicvc_drm_probe(struct platform_device *pdev)
 	struct logicvc_drm *logicvc;
 	struct device *dev = &pdev->dev;
 	struct drm_device *drm_dev;
-	struct regmap *regmap;
+	struct regmap *regmap = NULL;
 	struct resource res;
 	void __iomem *base;
 	int irq;
-- 
2.35.1

Re: [PATCH] drm: logicvc: Fix uninitialized variable in probe

[Paul Kocialkowski]

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Hi Dan,

On Tue 14 Jun 22, 15:08, Dan Carpenter wrote:
> The "regmap" is supposed to be initialized to NULL but it's used
> without being initialized.
> 
> Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Nice catch, thanks a lot!

Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

Cheers,

Paul

> ---
>  drivers/gpu/drm/logicvc/logicvc_drm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/logicvc/logicvc_drm.c b/drivers/gpu/drm/logicvc/logicvc_drm.c
> index df1805cf0f95..0b983a33f9ff 100644
> --- a/drivers/gpu/drm/logicvc/logicvc_drm.c
> +++ b/drivers/gpu/drm/logicvc/logicvc_drm.c
> @@ -298,7 +298,7 @@ static int logicvc_drm_probe(struct platform_device *pdev)
>  	struct logicvc_drm *logicvc;
>  	struct device *dev = &pdev->dev;
>  	struct drm_device *drm_dev;
> -	struct regmap *regmap;
> +	struct regmap *regmap = NULL;
>  	struct resource res;
>  	void __iomem *base;
>  	int irq;
> -- 
> 2.35.1
> 

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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Re: [PATCH] drm: logicvc: Fix uninitialized variable in probe

[Maxime Ripard]

Hi,

On Fri, Jun 24, 2022 at 04:35:25PM +0200, Paul Kocialkowski wrote:
> On Tue 14 Jun 22, 15:08, Dan Carpenter wrote:
> > The "regmap" is supposed to be initialized to NULL but it's used
> > without being initialized.
> > 
> > Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> Nice catch, thanks a lot!
> 
> Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

Since you have the commit rights to drm-misc, you should apply it

Maxime

Re: [PATCH] drm: logicvc: Fix uninitialized variable in probe

[Paul Kocialkowski]

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Hi,

On Fri 24 Jun 22, 16:37, Maxime Ripard wrote:
> Hi,
> 
> On Fri, Jun 24, 2022 at 04:35:25PM +0200, Paul Kocialkowski wrote:
> > On Tue 14 Jun 22, 15:08, Dan Carpenter wrote:
> > > The "regmap" is supposed to be initialized to NULL but it's used
> > > without being initialized.
> > > 
> > > Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> > > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > 
> > Nice catch, thanks a lot!
> > 
> > Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> 
> Since you have the commit rights to drm-misc, you should apply it

Absolutely, I'm on my way to doing that.

Do I need to reply to the emails with a message indicating that I merged them
or is using the tool sufficient?

Thanks,

Paul

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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Re: [PATCH] drm: logicvc: Fix uninitialized variable in probe

[Maxime Ripard]

On Fri, Jun 24, 2022 at 04:46:36PM +0200, Paul Kocialkowski wrote:
> Hi,
> 
> On Fri 24 Jun 22, 16:37, Maxime Ripard wrote:
> > Hi,
> > 
> > On Fri, Jun 24, 2022 at 04:35:25PM +0200, Paul Kocialkowski wrote:
> > > On Tue 14 Jun 22, 15:08, Dan Carpenter wrote:
> > > > The "regmap" is supposed to be initialized to NULL but it's used
> > > > without being initialized.
> > > > 
> > > > Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> > > > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > > 
> > > Nice catch, thanks a lot!
> > > 
> > > Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > 
> > Since you have the commit rights to drm-misc, you should apply it
> 
> Absolutely, I'm on my way to doing that.

Giving your Acked-by is confusing then, because it's kind of implied if
you apply it.

> Do I need to reply to the emails with a message indicating that I
> merged them or is using the tool sufficient?

Sending an email is better, dim doesn't do that

Maxime

Re: [PATCH] drm: logicvc: Fix uninitialized variable in probe

[Paul Kocialkowski]

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Hi,

On Fri 24 Jun 22, 16:35, Paul Kocialkowski wrote:
> Hi Dan,
> 
> On Tue 14 Jun 22, 15:08, Dan Carpenter wrote:
> > The "regmap" is supposed to be initialized to NULL but it's used
> > without being initialized.
> > 
> > Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> Nice catch, thanks a lot!
> 
> Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

Pushed to drm-misc-next, thanks!

Paul

> Cheers,
> 
> Paul
> 
> > ---
> >  drivers/gpu/drm/logicvc/logicvc_drm.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/logicvc/logicvc_drm.c b/drivers/gpu/drm/logicvc/logicvc_drm.c
> > index df1805cf0f95..0b983a33f9ff 100644
> > --- a/drivers/gpu/drm/logicvc/logicvc_drm.c
> > +++ b/drivers/gpu/drm/logicvc/logicvc_drm.c
> > @@ -298,7 +298,7 @@ static int logicvc_drm_probe(struct platform_device *pdev)
> >  	struct logicvc_drm *logicvc;
> >  	struct device *dev = &pdev->dev;
> >  	struct drm_device *drm_dev;
> > -	struct regmap *regmap;
> > +	struct regmap *regmap = NULL;
> >  	struct resource res;
> >  	void __iomem *base;
> >  	int irq;
> > -- 
> > 2.35.1
> > 
> 
> -- 
> Paul Kocialkowski, Bootlin
> Embedded Linux and kernel engineering
> https://bootlin.com



-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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Re: [PATCH] drm: logicvc: Fix uninitialized variable in probe

[Maxime Ripard]

On Fri, Jun 24, 2022 at 04:46:36PM +0200, Paul Kocialkowski wrote:
> Hi,
> 
> On Fri 24 Jun 22, 16:37, Maxime Ripard wrote:
> > Hi,
> > 
> > On Fri, Jun 24, 2022 at 04:35:25PM +0200, Paul Kocialkowski wrote:
> > > On Tue 14 Jun 22, 15:08, Dan Carpenter wrote:
> > > > The "regmap" is supposed to be initialized to NULL but it's used
> > > > without being initialized.
> > > > 
> > > > Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> > > > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > > 
> > > Nice catch, thanks a lot!
> > > 
> > > Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > 
> > Since you have the commit rights to drm-misc, you should apply it
> 
> Absolutely, I'm on my way to doing that.
> 
> Do I need to reply to the emails with a message indicating that I merged them
> or is using the tool sufficient?

Going back on this, but it's fairly easy with b4 to generate the
messages that you applied them.

For example, I'm using:

cat mail | b4 am -t --no-cover -o - -P _ | dim apply-branch drm-misc-fixes

b4 am will retrieve the last version of the patch from lore (and only
the current patch with --no-cover -P _), add the tags (-t) and output it
on stdout (-o -) and pass it to dim apply-branch

Then, you can do

b4 ty -a && git send-email *.thanks && rm *.thanks

And it will send a mail for every patch you applied in the current branch

Maxime