diff options
| -rw-r--r-- | kernel/timer.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index 612de03..483e54b 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -974,7 +974,11 @@ int del_timer_sync(struct timer_list *timer) lock_map_release(&timer->lockdep_map); local_bh_enable(); #endif - + /* + * don't use it in hardirq context, because it + * could lead to deadlock. + */ + WARN_ON(in_irq()); for (;;) { int ret = try_to_del_timer_sync(timer); if (ret >= 0) |