Commit 3a3f5c7d authored by Peter Hurley's avatar Peter Hurley Committed by Gustavo F. Padovan

Bluetooth: cmtp: 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: default avatarPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 38d57555
...@@ -292,9 +292,11 @@ static int cmtp_session(void *arg) ...@@ -292,9 +292,11 @@ static int cmtp_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;
if (sk->sk_state != BT_CONNECTED) if (sk->sk_state != BT_CONNECTED)
break; break;
...@@ -307,7 +309,7 @@ static int cmtp_session(void *arg) ...@@ -307,7 +309,7 @@ static int cmtp_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);
down_write(&cmtp_session_sem); down_write(&cmtp_session_sem);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment