ldisc: debug aids

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-16 17:00:53 +01:00 · 2009-06-16 17:00:53 +01:00 · 677ca3060c
parent 52856ed732
commit 677ca3060c
1 changed files with 1 additions and 0 deletions
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/char/tty_ldisc.c
@ -207,6 +207,7 @@ static void tty_ldisc_put(struct tty_ldisc *ld)
 	ldo->refcount--;
 	module_put(ldo->owner);
 	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
+	WARN_ON(ld->refcount);
 	kfree(ld);
 }