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-rw-r--r--kernel/printk.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index ee79f14..22e070f 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -1914,7 +1914,8 @@ static int __cpuinit console_cpu_notify(struct notifier_block *self,
*/
void console_lock(void)
{
- BUG_ON(in_interrupt());
+ might_sleep();
+
down(&console_sem);
if (console_suspended)
return;
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