workqueue: Fix missing kfree(rescuer) in destroy_workqueue()

htejun · htejun · commit 8efe1223d73c · 2019-09-20T13:39:57.000-07:00
Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Qian Cai <cai@lca.pw> Fixes: def98c8 ("workqueue: Fix spurious sanity check failures in destroy_workqueue()")
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
@@ -4345,6 +4345,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
 
 		/* rescuer will empty maydays list before exiting */
 		kthread_stop(rescuer->task);
+		kfree(rescuer);
 	}
 
 	/* sanity checks */

Original file line number	Diff line number	Diff line change
`@@ -4345,6 +4345,7 @@ void destroy_workqueue(struct workqueue_struct *wq)`
`4345`	`4345`
`4346`	`4346`	`/* rescuer will empty maydays list before exiting */`
`4347`	`4347`	`kthread_stop(rescuer->task);`
	`4348`	`+ kfree(rescuer);`
`4348`	`4349`	`}`
`4349`	`4350`
`4350`	`4351`	`/* sanity checks */`