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(parent: f88e2d1) | patch
drm/amdgpu: fix potential double drop fence reference
authorPan Bian <bianpan2016@163.com>
Wed, 6 Nov 2019 09:14:45 +0000 (17:14 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 6 Nov 2019 21:27:48 +0000 (16:27 -0500)
commit946ab8db6953535a3a88c957db8328beacdfed9d
tree860770973362aa44ae5e12c67c85c3f87c160e92tree | snapshot
parentf88e2d1f8ec40854c684d73ecf1cf66d4c6dad35commit | diff
drm/amdgpu: fix potential double drop fence reference

The object fence is not set to NULL after its reference is dropped. As a
result, its reference may be dropped again if error occurs after that,
which may lead to a use after free bug. To avoid the issue, fence is
explicitly set to NULL after dropping its reference.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_test.c diff | blob | history
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