ppp: exit_net cleanup checks added

vaverin · davem330 · commit e6675000f9a4 · 2017-11-14T15:46:17.000+09:00
Be sure that lists initialized in net_init hook were return
to initial state.

Signed-off-by: Vasily Averin &lt;vvs@virtuozzo.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
@@ -962,6 +962,8 @@ static __net_exit void ppp_exit_net(struct net *net)
 
 	mutex_destroy(&pn->all_ppp_mutex);
 	idr_destroy(&pn->units_idr);
+	WARN_ON_ONCE(!list_empty(&pn->all_channels));
+	WARN_ON_ONCE(!list_empty(&pn->new_channels));
 }
 
 static struct pernet_operations ppp_net_ops = {

Original file line number	Diff line number	Diff line change
`@@ -962,6 +962,8 @@ static __net_exit void ppp_exit_net(struct net *net)`
`962`	`962`
`963`	`963`	`mutex_destroy(&pn->all_ppp_mutex);`
`964`	`964`	`idr_destroy(&pn->units_idr);`
	`965`	`+ WARN_ON_ONCE(!list_empty(&pn->all_channels));`
	`966`	`+ WARN_ON_ONCE(!list_empty(&pn->new_channels));`
`965`	`967`	`}`
`966`	`968`
`967`	`969`	`static struct pernet_operations ppp_net_ops = {`