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authorsjur.brandeland@stericsson.com <sjur.brandeland@stericsson.com>2011-05-13 02:44:06 +0000
committerDavid S. Miller <davem@davemloft.net>2011-05-15 17:45:56 -0400
commitc85c2951d4da1236e32f1858db418221e624aba5 (patch)
tree8f70d7ab3dbe05ea6f812f9bfb8d341425a29193 /net/caif/caif_socket.c
parentbee925db9a77a5736596dcf6f91d0879f5ee915b (diff)
caif: Handle dev_queue_xmit errors.
Do proper handling of dev_queue_xmit errors in order to avoid double free of skb and leaks in error conditions. In cfctrl pending requests are removed when CAIF Link layer goes down. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/caif/caif_socket.c')
-rw-r--r--net/caif/caif_socket.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 653db759eb7e..7baae11a6126 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -604,7 +604,9 @@ static int caif_seqpkt_sendmsg(struct kiocb *kiocb, struct socket *sock,
goto err;
ret = transmit_skb(skb, cf_sk, noblock, timeo);
if (ret < 0)
- goto err;
+ /* skb is already freed */
+ return ret;
+
return len;
err:
kfree_skb(skb);
@@ -933,9 +935,9 @@ static int caif_release(struct socket *sock)
* caif_queue_rcv_skb checks SOCK_DEAD holding the queue lock,
* this ensures no packets when sock is dead.
*/
- spin_lock(&sk->sk_receive_queue.lock);
+ spin_lock_bh(&sk->sk_receive_queue.lock);
sock_set_flag(sk, SOCK_DEAD);
- spin_unlock(&sk->sk_receive_queue.lock);
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
sock->sk = NULL;
dbfs_atomic_inc(&cnt.num_disconnect);