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

Richard Stearn · davem330 · commit da278622bf04 · 2015-07-15T15:59:58.000-07:00
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 &lt;richard@rns-stearn.demon.co.uk&gt;
Cc: stable@vger.kernel.org	# all branches
Signed-off-by: Ralf Baechle &lt;ralf@linux-mips.org&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/net/ax25/ax25_subr.c b/net/ax25/ax25_subr.c
@@ -264,6 +264,7 @@ void ax25_disconnect(ax25_cb *ax25, int reason)
 {
 	ax25_clear_queues(ax25);
 
+	ax25_stop_heartbeat(ax25);
 	ax25_stop_t1timer(ax25);
 	ax25_stop_t2timer(ax25);
 	ax25_stop_t3timer(ax25);

Original file line number	Diff line number	Diff line change
`@@ -264,6 +264,7 @@ void ax25_disconnect(ax25_cb *ax25, int reason)`
`264`	`264`	`{`
`265`	`265`	`ax25_clear_queues(ax25);`
`266`	`266`
	`267`	`+ ax25_stop_heartbeat(ax25);`
`267`	`268`	`ax25_stop_t1timer(ax25);`
`268`	`269`	`ax25_stop_t2timer(ax25);`
`269`	`270`	`ax25_stop_t3timer(ax25);`