[PATCH 4/4 V2] drm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc

[Christian König]

Am 24.04.24 um 11:04 schrieb Jesse Zhang:
> Initialize the size before calling amdgpu_vce_cs_reloc, such as case 0x03000001.
> V2: To really improve the handling we would actually
>     need to have a separate value of 0xffffffff.(Christian)
>
> Signed-off-by: Jesse Zhang <Jesse.Zhang at amd.com>
> Suggested-by: Christian König <christian.koenig at amd.com>

Reviewed-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
> index 59acf424a078..968ca2c84ef7 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
> @@ -743,7 +743,8 @@ int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p,
>   	uint32_t created = 0;
>   	uint32_t allocated = 0;
>   	uint32_t tmp, handle = 0;
> -	uint32_t *size = &tmp;
> +	uint32_t dummy = 0xffffffff;
> +	uint32_t *size = &dummy;
>   	unsigned int idx;
>   	int i, r = 0;
>