From: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx> commit d3c7059b6a8600fc62cd863f1ea203b8675e63e1 upstream. Otherwise an uninitialized value can be returned if amdgpu_res_cleared returns true for all regions. Possibly closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3812 Fixes: a68c7eaa7a8f ("drm/amdgpu: Enable clear page functionality") Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx> Acked-by: Alex Deucher <alexander.deucher@xxxxxxx> Reviewed-by: Christian König <christian.koenig@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> (cherry picked from commit 7c62aacc3b452f73a1284198c81551035fac6d71) Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -2280,7 +2280,7 @@ int amdgpu_ttm_clear_buffer(struct amdgp struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; struct amdgpu_res_cursor cursor; u64 addr; - int r; + int r = 0; if (!adev->mman.buffer_funcs_enabled) return -EINVAL; Patches currently in stable-queue which might be from pierre-eric.pelloux-prayer@xxxxxxx are queue-6.13/drm-amdgpu-init-return-value-in-amdgpu_ttm_clear_buffer.patch
