6.13-stable review patch. If anyone has any objections, please let me know.
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From: Pierre-Eric Pelloux-Prayer pierre-eric.pelloux-prayer@amd.com
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@amd.com Acked-by: Alex Deucher alexander.deucher@amd.com Reviewed-by: Christian König christian.koenig@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com (cherry picked from commit 7c62aacc3b452f73a1284198c81551035fac6d71) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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;