drm/amdkfd: fix race condition in kfd_wait_on_events

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Add the waiters to the wait queue during initialization, while holding the
event spinlock. Otherwise the waiter will not get activated if the event
signals before being added to the wait queue.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Yang<Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Felix Kuehling 2022-04-12 16:24:49 -04:00 • committed by Alex Deucher

parent 9e12b5947b

commit 250e64a3f0

1 changed files with 5 additions and 21 deletions

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drivers/gpu/drm/amd/amdkfd/kfd_events.c

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