Re: [PATCH] nouveau: need to handle failed allocation

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On Thu, Jan 28, 2016 at 7:08 PM, Ilia Mirkin <imirkin@xxxxxxxxxxxx> wrote:
On Thu, Jan 28, 2016 at 7:09 PM, Insu Yun <wuninsu@xxxxxxxxx> wrote:
> drm_property_create_range can be failed in memory pressure.
> So, it needs to be handled.
>
> Signed-off-by: Insu Yun <wuninsu@xxxxxxxxx>
> ---
>  drivers/gpu/drm/nouveau/nouveau_display.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
> index 24be27d..26b4902 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_display.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_display.c
> @@ -443,6 +443,12 @@ nouveau_display_create_properties(struct drm_device *dev)
>         /* -100..+100 */
>         disp->color_vibrance_property =
>                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
> +
> +       if (!disp->underscan_hborder_property ||
> +                       !disp->underscan_vborder_property ||
> +                       !disp->vibrant_hue_property ||
> +                       !disp->color_vibrance_property)
> +               return;

Aren't we at the end of the function anyways?

Sorry. it is not perfect patch 
I found this by my static analyzer.
I have limited knowledge about this driver.
I don't want to mass up your driver.
What I want to do is to tell you there is a bug.
I think we need to return error to caller.
 

>  }
>
>  int
> --
> 1.9.1
>



--
Regards
Insu Yun
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