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| author | sjur.brandeland@stericsson.com <sjur.brandeland@stericsson.com> | 2011-05-13 02:44:06 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-05-15 17:45:56 -0400 |
| commit | c85c2951d4da1236e32f1858db418221e624aba5 (patch) | |
| tree | 8f70d7ab3dbe05ea6f812f9bfb8d341425a29193 /net/caif/caif_socket.c | |
| parent | bee925db9a77a5736596dcf6f91d0879f5ee915b (diff) | |
| download | linux-c85c2951d4da1236e32f1858db418221e624aba5.tar.gz linux-c85c2951d4da1236e32f1858db418221e624aba5.tar.bz2 linux-c85c2951d4da1236e32f1858db418221e624aba5.zip | |
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.c | 8 |
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); |