[2.6 patch] sound/core/control.c: remove dead code

[Adrian Bunk <bunk@stusta.de>]

This patch removes some obviously dead code spotted by the Coverity 
checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6/sound/core/control.c.old	2006-11-06 19:11:32.000000000 +0100
+++ linux-2.6/sound/core/control.c	2006-11-06 19:11:52.000000000 +0100
@@ -1267,23 +1267,23 @@ static ssize_t snd_ctl_read(struct file 
 			if ((file->f_flags & O_NONBLOCK) != 0 || result > 0) {
 				err = -EAGAIN;
 				goto __end_lock;
 			}
 			init_waitqueue_entry(&wait, current);
 			add_wait_queue(&ctl->change_sleep, &wait);
 			set_current_state(TASK_INTERRUPTIBLE);
 			spin_unlock_irq(&ctl->read_lock);
 			schedule();
 			remove_wait_queue(&ctl->change_sleep, &wait);
 			if (signal_pending(current))
-				return result > 0 ? result : -ERESTARTSYS;
+				return -ERESTARTSYS;
 			spin_lock_irq(&ctl->read_lock);
 		}
 		kev = snd_kctl_event(ctl->events.next);
 		ev.type = SNDRV_CTL_EVENT_ELEM;
 		ev.data.elem.mask = kev->mask;
 		ev.data.elem.id = kev->id;
 		list_del(&kev->list);
 		spin_unlock_irq(&ctl->read_lock);
 		kfree(kev);
 		if (copy_to_user(buffer, &ev, sizeof(struct snd_ctl_event))) {
 			err = -EFAULT;