From c03b355ea2938495bbdf25a4645be545be8890f4 Mon Sep 17 00:00:00 2001 From: Andrei Emeltchenko Date: Tue, 21 Feb 2012 12:54:56 +0200 Subject: [PATCH] Bluetooth: Add l2cap_chan_lock Channel lock will be used to lock L2CAP channels which are locked currently by socket locks. Signed-off-by: Andrei Emeltchenko Acked-by: Marcel Holtmann Reviewed-by: Ulisses Furquim Acked-by: Gustavo F. Padovan Signed-off-by: Johan Hedberg --- include/net/bluetooth/l2cap.h | 11 +++++++++++ net/bluetooth/l2cap_core.c | 2 ++ 2 files changed, 13 insertions(+) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index bbb0e214e51d..d6d8ec8eb8cf 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -497,6 +497,7 @@ struct l2cap_chan { void *data; struct l2cap_ops *ops; + struct mutex lock; }; struct l2cap_ops { @@ -609,6 +610,16 @@ static inline void l2cap_chan_put(struct l2cap_chan *c) kfree(c); } +static inline void l2cap_chan_lock(struct l2cap_chan *chan) +{ + mutex_lock(&chan->lock); +} + +static inline void l2cap_chan_unlock(struct l2cap_chan *chan) +{ + mutex_unlock(&chan->lock); +} + static inline void l2cap_set_timer(struct l2cap_chan *chan, struct delayed_work *work, long timeout) { diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 8e8e9e93fb34..e39eba1ac4da 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -247,6 +247,8 @@ struct l2cap_chan *l2cap_chan_create(struct sock *sk) if (!chan) return NULL; + mutex_init(&chan->lock); + chan->sk = sk; write_lock(&chan_list_lock); -- 2.20.1