drm/sched: Fix race in drm_sched_entity_select_rq()

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commit d25e3a610b upstream.

In a past bug fix it was forgotten that entity access must be protected
by the entity lock. That's a data race and potentially UB.

Move the spin_unlock() to the appropriate position.

Cc: stable@vger.kernel.org # v5.13+
Fixes: ac4eb83ab2 ("drm/sched: select new rq even if there is only one v3")
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://patch.msgid.link/20251022063402.87318-2-phasta@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Philipp Stanner 2025-10-22 08:34:03 +02:00 • committed by Greg Kroah-Hartman

parent 54eebe7be0

commit 2f02495fb7

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/scheduler/sched_entity.c

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