[PATCHv3 1/2] Bluetooth: Remove usage of __cancel_delayed_work()
From: Ulisses Furquim <hidden>
Date: 2012-01-23 20:17:29
Subsystem:
bluetooth subsystem, the rest · Maintainers:
Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds
__cancel_delayed_work() is being used in some paths where we cannot sleep waiting for the delayed work to finish. However, that function might return while the timer is running and the work will be queued again. Replace the calls with safer cancel_delayed_work() version which spins until the timer handler finishes on other CPUs and cancels the delayed work. Signed-off-by: Ulisses Furquim <redacted> --- include/net/bluetooth/l2cap.h | 4 ++-- net/bluetooth/l2cap_core.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index c163c20..fdec373 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h@@ -614,7 +614,7 @@ static inline void l2cap_set_timer(struct l2cap_chan *chan, { BT_DBG("chan %p state %d timeout %ld", chan, chan->state, timeout); - if (!__cancel_delayed_work(work)) + if (!cancel_delayed_work(work)) l2cap_chan_hold(chan); schedule_delayed_work(work, timeout); }
@@ -624,7 +624,7 @@ static inline bool l2cap_clear_timer(struct l2cap_chan *chan, { bool ret; - ret = __cancel_delayed_work(work); + ret = cancel_delayed_work(work); if (ret) l2cap_chan_put(chan);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 69e8490..e0121fd 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c@@ -2588,7 +2588,7 @@ static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hd if ((conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) && cmd->ident == conn->info_ident) { - __cancel_delayed_work(&conn->info_timer); + cancel_delayed_work(&conn->info_timer); conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE; conn->info_ident = 0;
@@ -3135,7 +3135,7 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) return 0; - __cancel_delayed_work(&conn->info_timer); + cancel_delayed_work(&conn->info_timer); if (result != L2CAP_IR_SUCCESS) { conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
@@ -4509,7 +4509,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt) if (hcon->type == LE_LINK) { smp_distribute_keys(conn, 0); - __cancel_delayed_work(&conn->security_timer); + cancel_delayed_work(&conn->security_timer); } rcu_read_lock();
--
1.7.8.rc4