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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 <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Andrei Emeltchenko 2012-02-21 12:54:56 +02:00 committed by Johan Hedberg
parent 3df91ea20e
commit c03b355ea2
2 changed files with 13 additions and 0 deletions
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11
include/net/bluetooth/l2cap.h
View File

@ -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)
{

2
net/bluetooth/l2cap_core.c
View File

@ -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);