* [PATCH] drm/msm: Odd PTR_ERR usage
@ 2013-09-16 21:19 Thomas Meyer
2013-09-18 0:08 ` Rob Clark
0 siblings, 1 reply; 2+ messages in thread
From: Thomas Meyer @ 2013-09-16 21:19 UTC (permalink / raw)
To: Linux Kernel Mailing List, airlied, dri-devel
The variable priv->kms is not initialized yet.
Found by "scripts/coccinelle/tests/odd_ptr_err.cocci".
PTR_ERR should access the value just tested by IS_ERR.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
---
diff -u -p a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -199,7 +199,7 @@ static int msm_load(struct drm_device *d
* imx drm driver on iMX5
*/
dev_err(dev->dev, "failed to load kms\n");
- ret = PTR_ERR(priv->kms);
+ ret = PTR_ERR(kms);
goto fail;
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] drm/msm: Odd PTR_ERR usage
2013-09-16 21:19 [PATCH] drm/msm: Odd PTR_ERR usage Thomas Meyer
@ 2013-09-18 0:08 ` Rob Clark
0 siblings, 0 replies; 2+ messages in thread
From: Rob Clark @ 2013-09-18 0:08 UTC (permalink / raw)
To: Thomas Meyer; +Cc: Linux Kernel Mailing List, dri-devel, Dave Airlie
On Mon, Sep 16, 2013 at 5:19 PM, Thomas Meyer <thomas@m3y3r.de> wrote:
> The variable priv->kms is not initialized yet.
>
> Found by "scripts/coccinelle/tests/odd_ptr_err.cocci".
> PTR_ERR should access the value just tested by IS_ERR.
>
> Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
thanks, I've got it queued up
BR,
-R
> ---
>
> diff -u -p a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -199,7 +199,7 @@ static int msm_load(struct drm_device *d
> * imx drm driver on iMX5
> */
> dev_err(dev->dev, "failed to load kms\n");
> - ret = PTR_ERR(priv->kms);
> + ret = PTR_ERR(kms);
> goto fail;
> }
>
>
> --
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^ permalink raw reply [flat|nested] 2+ messages in thread
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