drm/amd/amdgpu: Avoid fault when allocating an empty buffer object

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 84d82d5..c1387ef 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -348,7 +348,8 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
        if (r)
                return r;
 
-       amdgpu_bo_unreserve(*bo_ptr);
+       if (*bo_ptr)
+               amdgpu_bo_unreserve(*bo_ptr);
 
        return 0;
 }