commit da278622bf04f8ddb14519a2b8214e108ef26101
author Richard Stearn <richard@rns-stearn.demon.co.uk> Mon Jul 13 11:38:24 2015 +0200
committer David S. Miller <davem@davemloft.net> Wed Jul 15 15:59:58 2015 -0700
tree e74308e2eb04a410fd18fef51aab127c182d04e9
parent 738ac1ebb96d02e0d23bc320302a6ea94c612dec

NET: AX.25: Stop heartbeat timer on disconnect.

This may result in a kernel panic.  The bug has always existed but
somehow we've run out of luck now and it bites.

Signed-off-by: Richard Stearn <richard@rns-stearn.demon.co.uk>
Cc: stable@vger.kernel.org	# all branches
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ax25/ax25_subr.c

diff --git a/net/ax25/ax25_subr.c b/net/ax25/ax25_subr.c
index 1997538..3b78e84 100644
--- a/net/ax25/ax25_subr.c
+++ b/net/ax25/ax25_subr.c
@@ -264,6 +264,7 @@
 {
 	ax25_clear_queues(ax25);
 
+	ax25_stop_heartbeat(ax25);
 	ax25_stop_t1timer(ax25);
 	ax25_stop_t2timer(ax25);
 	ax25_stop_t3timer(ax25);