[PATCH] tty_ldisc: remove unnecessary negative return check forwait_event_timeout

From: Dave Young
Date: Tue Nov 08 2011 - 00:42:56 EST


wait_event_timeout always return value >= 0
remove the unnecessary ret < 0 check

Signed-off-by: Dave Young <dyoung@xxxxxxxxxx>
---
drivers/tty/tty_ldisc.c | 2 --
1 file changed, 2 deletions(-)

--- linux-2.6.orig/drivers/tty/tty_ldisc.c 2011-11-01 13:06:20.000000000 +0800
+++ linux-2.6/drivers/tty/tty_ldisc.c 2011-11-08 13:31:30.596308060 +0800
@@ -556,8 +556,6 @@ static int tty_ldisc_wait_idle(struct tt
int ret;
ret = wait_event_timeout(tty_ldisc_idle,
atomic_read(&tty->ldisc->users) == 1, 5 * HZ);
- if (ret < 0)
- return ret;
return ret > 0 ? 0 : -EBUSY;
}

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