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Message-Id: <20191219183224.972835729@linuxfoundation.org>
Date:   Thu, 19 Dec 2019 19:34:13 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Tejun Heo <tj@...nel.org>,
        Qian Cai <cai@....pw>,
        Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
Subject: [PATCH 4.9 171/199] workqueue: Fix missing kfree(rescuer) in destroy_workqueue()

From: Tejun Heo <tj@...nel.org>

commit 8efe1223d73c218ce7e8b2e0e9aadb974b582d7f upstream.

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

---
 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 */


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