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netrom: copy_datagram_iovec can fail 

Check for an error from this and if so bail properly.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alan Cox 2012-09-04 04:13:18 +00:00 committed by David S. Miller
parent 9fef76857f
commit 6cf5c95117
1 changed files with 6 additions and 1 deletions
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7
net/netrom/af_netrom.c
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@ -1169,7 +1169,12 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock,
msg->msg_flags |= MSG_TRUNC;
}
skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
er = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
if (er < 0) {
skb_free_datagram(sk, skb);
release_sock(sk);
return er;
}
if (sax != NULL) {
sax->sax25_family = AF_NETROM;