drm/amd/amdgpu: fix locking in bo creation error path
Unlock the resv lock only if we were the ones to lock it in the first
place.
Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
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 ac6b074..7aecf26 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -408,7 +408,8 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
return 0;
fail_unreserve:
- ww_mutex_unlock(&bo->tbo.resv->lock);
+ if (!resv)
+ ww_mutex_unlock(&bo->tbo.resv->lock);
amdgpu_bo_unref(&bo);
return r;
}