ieee1394: fix another deadlock in nodemgr
A "modprobe ohci1394; sleep 1.5; modprobe -r ohci1394" could get stuck
in uninterruptible state, especially if an external node was connected.
http://bugzilla.kernel.org/show_bug.cgi?id=7792
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index ba9faef..c5ace190 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -1681,7 +1681,8 @@
for (;;) {
/* Sleep until next bus reset */
set_current_state(TASK_INTERRUPTIBLE);
- if (get_hpsb_generation(host) == generation)
+ if (get_hpsb_generation(host) == generation &&
+ !kthread_should_stop())
schedule();
__set_current_state(TASK_RUNNING);
