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| author | Karsten Keil <keil@b1-systems.de> | 2009-05-22 11:04:52 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-05-25 00:55:30 -0700 |
| commit | 5df3b8bcc7826b85a2d233dd20da3ed247e1dc1d (patch) | |
| tree | a1a3a9a9e9b304088c6d0e6b07ea03136c40536d /drivers/isdn | |
| parent | d796509a57777bc0f8f336e360695fad665c59f5 (diff) | |
| download | linux-5df3b8bcc7826b85a2d233dd20da3ed247e1dc1d.tar.gz linux-5df3b8bcc7826b85a2d233dd20da3ed247e1dc1d.tar.bz2 linux-5df3b8bcc7826b85a2d233dd20da3ed247e1dc1d.zip | |
mISDN: Fix skb leak in error cases
If the channel receive function returns an error the skb must be freed.
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/mISDN/socket.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 530f68977361..2a2c30a9438f 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -209,7 +209,7 @@ mISDN_sock_sendmsg(struct kiocb *iocb, struct socket *sock, if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { err = -EFAULT; - goto drop; + goto done; } memcpy(mISDN_HEAD_P(skb), skb->data, MISDN_HEADER_LEN); @@ -230,19 +230,21 @@ mISDN_sock_sendmsg(struct kiocb *iocb, struct socket *sock, __func__, mISDN_HEAD_ID(skb)); err = -ENODEV; - if (!_pms(sk)->ch.peer || - (err = _pms(sk)->ch.recv(_pms(sk)->ch.peer, skb))) - goto drop; - - err = len; + if (!_pms(sk)->ch.peer) + goto done; + err = _pms(sk)->ch.recv(_pms(sk)->ch.peer, skb); + if (err) + goto done; + else { + skb = NULL; + err = len; + } done: + if (skb) + kfree_skb(skb); release_sock(sk); return err; - -drop: - kfree_skb(skb); - goto done; } static int |