ide: remove now redundant ->cur_dev checks

* ->cur_dev should now be always valid if ->handler is set so
  remove redundant checks from ide_intr() and ide_timer_expiry().

* Apply CodingStyle fixups in ide_timer_expiry() while at it.

There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-io.c

@@ -919,18 +919,15 @@ void ide_timer_expiry (unsigned long data)
 		 * or we were "sleeping" to give other devices a chance.
 		 * Either way, we don't really want to complain about anything.
 		 */
-	} else {
-		drive = hwif->cur_dev;
-		if (!drive) {
-			printk(KERN_ERR "%s: ->cur_dev was NULL\n", __func__);
-			hwif->handler = NULL;
 	} else {
 		ide_expiry_t *expiry = hwif->expiry;
 		ide_startstop_t startstop = ide_stopped;
 
+		drive = hwif->cur_dev;
+
 		if (expiry) {
-				/* continue */
-				if ((wait = expiry(drive)) > 0) {
+			wait = expiry(drive);
+			if (wait > 0) { /* continue */
 				/* reset timer */
 				hwif->timer.expires = jiffies + wait;
 				hwif->req_gen_timer = hwif->req_gen;
@@ -948,8 +945,7 @@ void ide_timer_expiry (unsigned long data)
 		spin_unlock(&hwif->lock);
 		/* disable_irq_nosync ?? */
 		disable_irq(hwif->irq);
-			/* local CPU only,
-			 * as if we were handling an interrupt */
+		/* local CPU only, as if we were handling an interrupt */
 		local_irq_disable();
 		if (hwif->polling) {
 			startstop = handler(drive);
@@ -957,14 +953,14 @@ void ide_timer_expiry (unsigned long data)
 			if (drive->waiting_for_dma)
 				hwif->dma_ops->dma_lost_irq(drive);
 			(void)ide_ack_intr(hwif);
-				printk(KERN_WARNING "%s: lost interrupt\n", drive->name);
+			printk(KERN_WARNING "%s: lost interrupt\n",
+				drive->name);
 			startstop = handler(drive);
 		} else {
-				if (drive->waiting_for_dma) {
+			if (drive->waiting_for_dma)
 				startstop = ide_dma_timeout_retry(drive, wait);
-				} else
-					startstop =
-					ide_error(drive, "irq timeout",
+			else
+				startstop = ide_error(drive, "irq timeout",
 					hwif->tp_ops->read_status(hwif));
 		}
 		spin_lock_irq(&hwif->lock);
@@ -974,7 +970,6 @@ void ide_timer_expiry (unsigned long data)
 			plug_device = 1;
 		}
 	}
-	}
 	spin_unlock_irqrestore(&hwif->lock, flags);
 
 	if (plug_device) {
@@ -1115,15 +1110,6 @@ irqreturn_t ide_intr (int irq, void *dev_id)
 	}
 
 	drive = hwif->cur_dev;
-	if (!drive) {
-		/*
-		 * This should NEVER happen, and there isn't much
-		 * we could do about it here.
-		 *
-		 * [Note - this can occur if the drive is hot unplugged]
-		 */
-		goto out_handled;
-	}
 
 	if (!drive_is_ready(drive))
 		/*
@@ -1162,7 +1148,6 @@ irqreturn_t ide_intr (int irq, void *dev_id)
 		ide_unlock_port(hwif);
 		plug_device = 1;
 	}
-out_handled:
 	irq_ret = IRQ_HANDLED;
 out:
 	spin_unlock_irqrestore(&hwif->lock, flags);