[AX.25]: Fix unchecked ax25_linkfail_register uses

ax25_linkfail_register uses kmalloc and the callers were ignoring the
error value.  Rewrite to let the caller deal with the allocation.  This
allows the use of static allocation of kmalloc use entirely.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 2 deletions

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index f4675bf3976c..43bbe2c9e49a 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1382,6 +1382,10 @@ static struct ax25_protocol nr_pid = {
         .func   = nr_route_frame
 };
 
+static struct ax25_linkfail nr_linkfail_notifier = {
+        .func   = nr_link_failed,
+};
+
 static int __init nr_proto_init(void)
 {
         int i;
@@ -1430,7 +1434,7 @@ static int __init nr_proto_init(void)
         register_netdevice_notifier(&nr_dev_notifier);
 
         ax25_register_pid(&nr_pid);
-        ax25_linkfail_register(nr_link_failed);
+        ax25_linkfail_register(&nr_linkfail_notifier);
 
 #ifdef CONFIG_SYSCTL
         nr_register_sysctl();
@@ -1479,7 +1483,7 @@ static void __exit nr_exit(void)
         nr_unregister_sysctl();
 #endif
 
-        ax25_linkfail_release(nr_link_failed);
+        ax25_linkfail_release(&nr_linkfail_notifier);
         ax25_protocol_release(AX25_P_NETROM);
 
         unregister_netdevice_notifier(&nr_dev_notifier);