[PATCH 4.9 171/199] workqueue: Fix missing kfree(rescuer) in destroy_workqueue()

[Greg Kroah-Hartman]

From: Tejun Heo <tj@xxxxxxxxxx>

commit 8efe1223d73c218ce7e8b2e0e9aadb974b582d7f upstream.

Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Reported-by: Qian Cai <cai@xxxxxx>
Fixes: def98c84b6cd ("workqueue: Fix spurious sanity check failures in destroy_workqueue()")
Cc: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 kernel/workqueue.c |    1 +
 1 file changed, 1 insertion(+)

--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4057,6 +4057,7 @@ void destroy_workqueue(struct workqueue_
 
 		/* rescuer will empty maydays list before exiting */
 		kthread_stop(rescuer->task);
+		kfree(rescuer);
 	}
 
 	/* sanity checks */