[patch 079/108] vt_ioctl: fix lock imbalance

From: Greg KH
Date: Tue Jun 30 2009 - 21:09:54 EST


2.6.30-stable review patch. If anyone has any objections, please let us know.

------------------

From: Jiri Slaby <jirislaby@xxxxxxxxx>

commit a115902f67ef51fbbe83e214fb761aaa9734c1ce upstream.

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@xxxxxxxxx>
Signed-off-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
drivers/char/vt_ioctl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

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


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