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drm/amdgpu: Fix race condition in MMU notifier release
authorFelix Kuehling <Felix.Kuehling@amd.com>
Thu, 14 Jan 2016 05:35:08 +0000 (00:35 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 16 Feb 2016 22:17:14 +0000 (17:17 -0500)
commitfa5b5000308136ad61a33126d8ad380cf1fef016
treeefe50fcd92ab123100bc50ad0e6e62475b0d7316tree | snapshot (tar.gz zip)
parent477d9f0ea6ef6c1501b32434dc06ce3fbbf9c200commit | diff
drm/amdgpu: Fix race condition in MMU notifier release

The release notifier can get called a second time from
mmu_notifier_unregister depending on a race between
__mmu_notifier_release and amdgpu_mn_destroy. Use
mmu_notifier_unregister_no_release to avoid this.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c diff | blob | blame | history