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tty_ldisc: remove unnecessary negative return check for wait_event_timeout 

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

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dave Young 2011-11-08 13:44:59 +08:00 committed by Greg Kroah-Hartman
parent 1ea6b8f489
commit 66ef27c3fd
1 changed files with 0 additions and 2 deletions
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2
drivers/tty/tty_ldisc.c
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@ -556,8 +556,6 @@ static int tty_ldisc_wait_idle(struct tty_struct *tty)
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;
}