ldisc: debug aids

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
git-mirror · Jun 16, 2009 · 677ca30 · 677ca30
1 parent 52856ed
commit 677ca30
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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);
 }