diff mbox

[1/2] printk: Debug patch1

Message ID 1412951028-4085-25-git-send-email-jack@suse.cz (mailing list archive)
State New, archived
Headers show

Commit Message

Jan Kara Oct. 10, 2014, 2:23 p.m. UTC 
Signed-off-by: Jan Kara <jack@suse.cz>
---
 kernel/printk/printk.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index ea2d5f6962ed..a39f4129f848 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1718,7 +1718,6 @@  asmlinkage int vprintk_emit(int facility, int level,
 
 	logbuf_cpu = UINT_MAX;
 	raw_spin_unlock(&logbuf_lock);
-	lockdep_on();
 	local_irq_restore(flags);
 
 	/* If called from the scheduler, we can not call up(). */
@@ -1738,6 +1737,9 @@  asmlinkage int vprintk_emit(int facility, int level,
 	if (console_trylock_for_printk())
 		console_unlock();
 	preempt_enable();
+	local_irq_save(flags);
+	lockdep_on();
+	local_irq_restore(flags);
 
 	return printed_len;
 }