commit 200c5a3b387c415e49639ee0f6de37804522b745
author sjur.brandeland@stericsson.com <sjur.brandeland@stericsson.com> Wed Nov 30 09:22:46 2011 +0000
committer David S. Miller <davem@davemloft.net> Wed Nov 30 23:30:47 2011 -0500
tree 41cfe46585f6d42a2f9cbf6783b8dd94d545ced5
parent 7bc0f28c7a0cd19f40e5a6e4d0a117db9a4e4cd5

caif: Allow cfpkt_extr_head to process empty message

Allow NULL pointer in cfpkt_extr_head in order to
skip past header data.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/caif/cfpkt_skbuff.c

diff --git a/net/caif/cfpkt_skbuff.c b/net/caif/cfpkt_skbuff.c
index df08c47..de53907 100644
--- a/net/caif/cfpkt_skbuff.c
+++ b/net/caif/cfpkt_skbuff.c
@@ -144,7 +144,8 @@
 	}
 	from = skb_pull(skb, len);
 	from -= len;
-	memcpy(data, from, len);
+	if (data)
+		memcpy(data, from, len);
 	return 0;
 }