[patch 14/17] irda: missing allocation result check in irlap_change_speed()

[akpm@osdl.org]

From: Florin Malita <fmalita@gmail.com>

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

Coverity CID: 434.

davem: "If the allocation fails we should probably do something more
interesting here, such as schedule a timer to try again later.  Otherwise the
speed change will silently never occur."

Signed-off-by: Florin Malita <fmalita@gmail.com>
Cc: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 net/irda/irlap.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN net/irda/irlap.c~irda-missing-allocation-result-check-in-irlap_change_speed net/irda/irlap.c
--- devel/net/irda/irlap.c~irda-missing-allocation-result-check-in-irlap_change_speed	2006-06-01 20:31:50.000000000 -0700
+++ devel-akpm/net/irda/irlap.c	2006-06-01 20:31:50.000000000 -0700
@@ -884,7 +884,8 @@ static void irlap_change_speed(struct ir
 	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);
 	}
 }
 
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