From: Tejun Heo <tj@kernel.org>
Date: Fri, 20 Sep 2019 20:39:57 +0000 (-0700)
Subject: workqueue: Fix missing kfree(rescuer) in destroy_workqueue()
X-Git-Tag: v5.3.17~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b025e3f91e1f132700394bfcc8a6962f941cf55;p=thirdparty%2Fkernel%2Fstable.git

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

commit 8efe1223d73c218ce7e8b2e0e9aadb974b582d7f upstream.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Qian Cai <cai@lca.pw>
Fixes: def98c84b6cd ("workqueue: Fix spurious sanity check failures in destroy_workqueue()")
Cc: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ab6c9d2490f99..7f7b05c69835e 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4342,6 +4342,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
 
 		/* rescuer will empty maydays list before exiting */
 		kthread_stop(rescuer->task);
+		kfree(rescuer);
 	}
 
 	/* sanity checks */