Re: [PATCH 2/2] drm/radeon/uvd: Fix forgotten unmap buffer objects

[Christian König <christian.koenig@xxxxxxx>]

Am 29.01.22 um 08:35 schrieb zhanglianjie:
> after the buffer object is successfully mapped, call radeon_bo_kunmap before the function returns.
>
> Signed-off-by: zhanglianjie <zhanglianjie@xxxxxxxxxxxxx>
>
> diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
> index 377f9cdb5b53..c5482f7793db 100644
> --- a/drivers/gpu/drm/radeon/radeon_uvd.c
> +++ b/drivers/gpu/drm/radeon/radeon_uvd.c
> @@ -497,6 +497,7 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
>   	handle = msg[2];
>
>   	if (handle == 0) {
> +		radeon_bo_kunmap(bo);
>   		DRM_ERROR("Invalid UVD handle!\n");
>   		return -EINVAL;
>   	}
> @@ -559,11 +560,10 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
>   		return 0;
>
>   	default:
> -
>   		DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
> -		return -EINVAL;
>   	}
>
> +	radeon_bo_kunmap(bo);
>   	BUG();

That looks like it will trigger this BUG() now. Please also remove that 
line.

Apart from that the patches look good to me.

Regards,
Christian.

>   	return -EINVAL;
>   }
> --
> 2.20.1