From 751c10a56802513a6b057c8cf1552cecc1c9afde Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Fri, 5 Aug 2011 10:41:35 -0400 Subject: Bluetooth: bnep: Fix deadlock in session deletion Commit f4d7cd4a4c introduced the usage of kthread API. kthread_stop is a blocking function which returns only when the thread exits. In this case, the thread can't exit because it's waiting for the write lock, which is being held by bnep_del_connection() which is waiting for the thread to exit -- deadlock. Use atomic_t/wake_up_process instead to signal to the thread to exit. Signed-off-by: Jaikumar Ganesh Signed-off-by: Peter Hurley Signed-off-by: Gustavo F. Padovan --- net/bluetooth/bnep/bnep.h | 1 + 1 file changed, 1 insertion(+) (limited to 'net/bluetooth/bnep/bnep.h') diff --git a/net/bluetooth/bnep/bnep.h b/net/bluetooth/bnep/bnep.h index 8e6c06158f8..e7ee5314f39 100644 --- a/net/bluetooth/bnep/bnep.h +++ b/net/bluetooth/bnep/bnep.h @@ -155,6 +155,7 @@ struct bnep_session { unsigned int role; unsigned long state; unsigned long flags; + atomic_t terminate; struct task_struct *task; struct ethhdr eh; -- cgit v1.2.3-70-g09d2