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Bluetooth: bnep: Fix lost wakeup of session thread 

Fix race condition which can result in missing the wakeup intended
to stop the session thread.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Peter Hurley 2011-07-24 00:11:07 -04:00 committed by Gustavo F. Padovan
parent 552b0d3cb9
commit 38d5755561
1 changed files with 4 additions and 2 deletions
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6
net/bluetooth/bnep/core.c
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@ -484,9 +484,11 @@ static int bnep_session(void *arg)
init_waitqueue_entry(&wait, current); init_waitqueue_entry(&wait, current);
add_wait_queue(sk_sleep(sk), &wait); add_wait_queue(sk_sleep(sk), &wait);
while (!kthread_should_stop()) { while (1) {
set_current_state(TASK_INTERRUPTIBLE); set_current_state(TASK_INTERRUPTIBLE);
if (kthread_should_stop())
break;
/* RX */ /* RX */
while ((skb = skb_dequeue(&sk->sk_receive_queue))) { while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
skb_orphan(skb); skb_orphan(skb);
@ -504,7 +506,7 @@ static int bnep_session(void *arg)
schedule(); schedule();
} }
set_current_state(TASK_RUNNING); __set_current_state(TASK_RUNNING);
remove_wait_queue(sk_sleep(sk), &wait); remove_wait_queue(sk_sleep(sk), &wait);
/* Cleanup session */ /* Cleanup session */