[PATCH] drm/amdgpu/vcn: fix unitialized variable warnings

[Alex Deucher]

On Thu, Apr 18, 2024 at 2:22 PM Pierre-Eric Pelloux-Prayer
<pierre-eric.pelloux-prayer at amd.com> wrote:
>
> Init r to 0 to avoid returning an uninitialized value if we never
> enter the loop. This case should never be hit in practive, but

s/practive/practice/

> returning 0 doesn't hurt.

s/returning/initializing to/

With that fixed,
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

>
> The same fix is applied to the 4 places using the same pattern.
>
> Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c   | 2 +-
>  drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c   | 2 +-
>  drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c | 2 +-
>  drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c | 2 +-
>  4 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
> index 8f82fb887e9c..724445545563 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
> @@ -298,7 +298,7 @@ static int vcn_v3_0_hw_init(void *handle)
>  {
>         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>         struct amdgpu_ring *ring;
> -       int i, j, r;
> +       int i, j, r = 0;
>
>         if (amdgpu_sriov_vf(adev)) {
>                 r = vcn_v3_0_start_sriov(adev);
> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
> index 832d15f7b5f6..9be7ae7af4b1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
> @@ -253,7 +253,7 @@ static int vcn_v4_0_hw_init(void *handle)
>  {
>         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>         struct amdgpu_ring *ring;
> -       int i, r;
> +       int i, r = 0;
>
>         if (amdgpu_sriov_vf(adev)) {
>                 r = vcn_v4_0_start_sriov(adev);
> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c
> index 501e53e69f2a..593c64e4b8ef 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c
> @@ -221,7 +221,7 @@ static int vcn_v4_0_5_hw_init(void *handle)
>  {
>         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>         struct amdgpu_ring *ring;
> -       int i, r;
> +       int i, r = 0;
>
>         for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
>                 if (adev->vcn.harvest_config & (1 << i))
> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
> index bc60c554eb32..246f967e2e7d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
> @@ -187,7 +187,7 @@ static int vcn_v5_0_0_hw_init(void *handle)
>  {
>         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>         struct amdgpu_ring *ring;
> -       int i, r;
> +       int i, r = 0;
>
>         for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
>                 if (adev->vcn.harvest_config & (1 << i))
> --
> 2.41.0
>