timerfd: Remove an always true check

We would have returned -EINVAL earlier if ticks wasn't set.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Link: http://lkml.kernel.org/r/20140801082848.GF28869@mwandaSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

fs/timerfd.c

@@ -333,8 +333,7 @@ static long timerfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg
 		spin_lock_irq(&ctx->wqh.lock);
 		if (!timerfd_canceled(ctx)) {
 			ctx->ticks = ticks;
-			if (ticks)
-				wake_up_locked(&ctx->wqh);
+			wake_up_locked(&ctx->wqh);
 		} else
 			ret = -ECANCELED;
 		spin_unlock_irq(&ctx->wqh.lock);