netdev - [patch] bluetooth: handle l2cap_create_connless

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Message-ID: <20100422095201.GO29647@bicker>
Date:	Thu, 22 Apr 2010 11:52:01 +0200
From:	Dan Carpenter <error27@...il.com>
To:	Marcel Holtmann <marcel@...tmann.org>
Cc:	"David S. Miller" <davem@...emloft.net>,
	"Gustavo F. Padovan" <gustavo@...ovan.org>,
	Andrei Emeltchenko <andrei.emeltchenko@...ia.com>,
	linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] bluetooth: handle l2cap_create_connless_pdu() errors

l2cap_create_connless_pdu() can sometimes return ERR_PTR(-ENOMEM) or
ERR_PTR(-EFAULT).

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 99d68c3..9753b69 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -1626,7 +1626,10 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
 	/* Connectionless channel */
 	if (sk->sk_type == SOCK_DGRAM) {
 		skb = l2cap_create_connless_pdu(sk, msg, len);
-		err = l2cap_do_send(sk, skb);
+		if (IS_ERR(skb))
+			err = PTR_ERR(skb);
+		else
+			err = l2cap_do_send(sk, skb);
 		goto done;
 	}
 
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