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-rw-r--r--kernel/workqueue.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 04a8b98d30ce..4d344326ae97 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3534,6 +3534,7 @@ static void pwq_unbound_release_workfn(struct work_struct *work)
3534 unbound_release_work); 3534 unbound_release_work);
3535 struct workqueue_struct *wq = pwq->wq; 3535 struct workqueue_struct *wq = pwq->wq;
3536 struct worker_pool *pool = pwq->pool; 3536 struct worker_pool *pool = pwq->pool;
3537 bool is_last;
3537 3538
3538 if (WARN_ON_ONCE(!(wq->flags & WQ_UNBOUND))) 3539 if (WARN_ON_ONCE(!(wq->flags & WQ_UNBOUND)))
3539 return; 3540 return;
@@ -3545,6 +3546,7 @@ static void pwq_unbound_release_workfn(struct work_struct *work)
3545 */ 3546 */
3546 mutex_lock(&wq->mutex); 3547 mutex_lock(&wq->mutex);
3547 list_del_rcu(&pwq->pwqs_node); 3548 list_del_rcu(&pwq->pwqs_node);
3549 is_last = list_empty(&wq->pwqs);
3548 mutex_unlock(&wq->mutex); 3550 mutex_unlock(&wq->mutex);
3549 3551
3550 put_unbound_pool(pool); 3552 put_unbound_pool(pool);
@@ -3554,7 +3556,7 @@ static void pwq_unbound_release_workfn(struct work_struct *work)
3554 * If we're the last pwq going away, @wq is already dead and no one 3556 * If we're the last pwq going away, @wq is already dead and no one
3555 * is gonna access it anymore. Free it. 3557 * is gonna access it anymore. Free it.
3556 */ 3558 */
3557 if (list_empty(&wq->pwqs)) 3559 if (is_last)
3558 kfree(wq); 3560 kfree(wq);
3559} 3561}
3560 3562