[ALSA] Fix invalid schedule_timeout_interruptible()

Fixed the invalid use of schedule_timeout_interruptible() without
checking pending signals.  Simply replaced with schedule_timeout().
Suggestions thanks to Jeff Garzik.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/isa/ad1848/ad1848_lib.c

@@ -245,7 +245,7 @@ static void snd_ad1848_mce_down(struct snd_ad1848 *chip)
 			snd_printk(KERN_ERR "mce_down - auto calibration time out (2)\n");
 			return;
 		}
-		time = schedule_timeout_interruptible(time);
+		time = schedule_timeout(time);
 		spin_lock_irqsave(&chip->reg_lock, flags);
 	}
 #if 0
@@ -258,7 +258,7 @@ static void snd_ad1848_mce_down(struct snd_ad1848 *chip)
 			snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
 			return;
 		}
-		time = schedule_timeout_interruptible(time);
+		time = schedule_timeout(time);
 		spin_lock_irqsave(&chip->reg_lock, flags);
 	}
 	spin_unlock_irqrestore(&chip->reg_lock, flags);