linux-kernel - [PATCH 3/3] Char: vt_ioctl, fix lock imbalance

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Date:	Fri, 19 Jun 2009 23:08:28 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	alan@...rguk.ukuu.org.uk
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Jiri Slaby <jirislaby@...il.com>
Subject: [PATCH 3/3] Char: vt_ioctl, fix lock imbalance

Don't return from switch/case directly in vt_ioctl. Set ret and break
instead so that we unlock BKL.

Signed-off-by: Jiri Slaby <jirislaby@...il.com>
---
 drivers/char/vt_ioctl.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index e6ce632..7539bed 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -396,7 +396,8 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 	kbd = kbd_table + console;
 	switch (cmd) {
 	case TIOCLINUX:
-		return tioclinux(tty, arg);
+		ret = tioclinux(tty, arg);
+		break;
 	case KIOCSOUND:
 		if (!perm)
 			goto eperm;
-- 
1.6.3.2

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