[IRDA]: Missing allocation result check in irlap_change_speed().

The skb allocation may fail, which can result in a NULL pointer dereference
in irlap_queue_xmit().

Coverity CID: 434.

Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/irda/irlap.c b/net/irda/irlap.c
index 7029618f571..a16528657b4 100644
--- a/net/irda/irlap.c
+++ b/net/irda/irlap.c
@@ -884,7 +884,8 @@ static void irlap_change_speed(struct irlap_cb *self, __u32 speed, int now)
         if (now) {
                 /* Send down empty frame to trigger speed change */
                 skb = dev_alloc_skb(0);
-                irlap_queue_xmit(self, skb);
+                if (skb)
+                        irlap_queue_xmit(self, skb);
         }
 }