drm/amdgpu: fix error handling in amdgpu_bo_list_get()

commit 12f76050d8d4d10dab96333656b821bd4620d103 upstream.

We should not leak the pointer where we couldn't grab the reference
on to the caller because it can be that the error handling still
tries to put the reference then.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
index 714178f1b6c6edb83464fbd2fcfbfc5d16ec3eab..9fb8012007e2e2a6812aae8bd7be9d6ce0657fda 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
@@ -178,6 +178,7 @@ int amdgpu_bo_list_get(struct amdgpu_fpriv *fpriv, int id,
        }
 
        rcu_read_unlock();
+       *result = NULL;
        return -ENOENT;
 }