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net/netrom: Fix socket locking

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Patch "af_rose/x25: Sanity check the maximum user frame size"
(commit 83e0bbcbe2) from Alan Cox got
locking wrong. If we bail out due to user frame size being too large,
we must unlock the socket beforehand.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jean Delvare 2009-04-22 00:49:51 -07:00 committed by David S. Miller
parent 50b2ff1bc4
commit cc29c70dd5
1 changed files with 4 additions and 2 deletions
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6
net/netrom/af_netrom.c
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@ -1084,8 +1084,10 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock,
/* Build a packet - the conventional user limit is 236 bytes. We can
do ludicrously large NetROM frames but must not overflow */
if (len > 65536)
return -EMSGSIZE;
if (len > 65536) {
err = -EMSGSIZE;
goto out;
}
SOCK_DEBUG(sk, "NET/ROM: sendto: building packet.\n");
size = len + NR_NETWORK_LEN + NR_TRANSPORT_LEN;