drm/amdgpu: fix potential double drop fence reference

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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>

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Pan Bian 2019-11-06 17:14:45 +08:00 • committed by Alex Deucher

parent f88e2d1f8e

commit 946ab8db69

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_test.c

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