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| author | Mat Martineau <mathewm@codeaurora.org> | 2012-05-04 14:20:31 -0700 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2012-05-16 16:14:02 -0300 |
| commit | a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 (patch) | |
| tree | a85da07516e3c584056373fbad175a3757040b5c /include/net | |
| parent | ef191aded58c5e6860b01f463818584a420a4d6b (diff) | |
| download | linux-a6a5568c03c4805d4d250f6bd9d468eeeb4ea059.tar.gz linux-a6a5568c03c4805d4d250f6bd9d468eeeb4ea059.tar.xz linux-a6a5568c03c4805d4d250f6bd9d468eeeb4ea059.zip | |
Bluetooth: Lock the L2CAP channel when sending
The ERTM and streaming mode transmit queue must only be accessed while
the L2CAP channel lock is held. Locking the channel before calling
l2cap_chan_send ensures that multiple threads cannot simultaneously
manipulate the queue when sending and receiving concurrently.
L2CAP channel locking had previously moved to the l2cap_chan struct
instead of the associated socket, so some of the old socket locking
can also be removed in this patch.
Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/bluetooth/bluetooth.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index c34a9a6184a1..7981ca48b83a 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -257,12 +257,10 @@ static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, { struct sk_buff *skb; - release_sock(sk); if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) { skb_reserve(skb, BT_SKB_RESERVE); bt_cb(skb)->incoming = 0; } - lock_sock(sk); if (!skb && *err) return NULL; |