[Mesa-dev] [PATCH 4/5] nv50: check return value of nouveau_object_new()

Ilia Mirkin imirkin at alum.mit.edu
Mon Dec 14 07:05:02 PST 2015


Bogus. obj will be null on failure.

On Mon, Dec 14, 2015 at 5:14 AM, Samuel Pitoiset
<samuel.pitoiset at gmail.com> wrote:
> Spotted by Coverity.
>
> Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
> ---
>  src/gallium/drivers/nouveau/nv50/nv84_video.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/src/gallium/drivers/nouveau/nv50/nv84_video.c b/src/gallium/drivers/nouveau/nv50/nv84_video.c
> index 7a4670f..5e2489a 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv84_video.c
> +++ b/src/gallium/drivers/nouveau/nv50/nv84_video.c
> @@ -756,8 +756,8 @@ firmware_present(struct pipe_screen *pscreen, enum pipe_video_format codec)
>     int present, ret;
>
>     if (!FIRMWARE_PRESENT(checked, VP_KERN)) {
> -      nouveau_object_new(screen->channel, 0, 0x7476, NULL, 0, &obj);
> -      if (obj)
> +      ret = nouveau_object_new(screen->channel, 0, 0x7476, NULL, 0, &obj);
> +      if (!ret && obj)
>           screen->firmware_info.profiles_present |= FIRMWARE_VP_KERN;
>        nouveau_object_del(&obj);
>        screen->firmware_info.profiles_checked |= FIRMWARE_VP_KERN;
> @@ -765,8 +765,8 @@ firmware_present(struct pipe_screen *pscreen, enum pipe_video_format codec)
>
>     if (codec == PIPE_VIDEO_FORMAT_MPEG4_AVC) {
>        if (!FIRMWARE_PRESENT(checked, BSP_KERN)) {
> -         nouveau_object_new(screen->channel, 0, 0x74b0, NULL, 0, &obj);
> -         if (obj)
> +         ret = nouveau_object_new(screen->channel, 0, 0x74b0, NULL, 0, &obj);
> +         if (!ret && obj)
>              screen->firmware_info.profiles_present |= FIRMWARE_BSP_KERN;
>           nouveau_object_del(&obj);
>           screen->firmware_info.profiles_checked |= FIRMWARE_BSP_KERN;
> --
> 2.6.4
>
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