input: AD7877 driver fixup

index aaf88c9..6615bcd 100644
@@ -388,10 +388,11 @@ static irqreturn_t ad7877_irq(int irq, void *handle)
 	 * doesn't get issued twice while in work.
 	 */
 
-	if (ts->pending)
-		return IRQ_HANDLED;
-
 	spin_lock_irqsave(&ts->lock, flags);
+	if (ts->pending) {
+		spin_unlock_irqrestore(&ts->lock, flags);
+		return IRQ_HANDLED;
+	}
 	ts->pending = 1;
 	spin_unlock_irqrestore(&ts->lock, flags);
 

@@ -420,10 +421,12 @@ static void ad7877_disable(struct ad7877 *ts)
 {
 	unsigned long flags;
 
-	if (ts->disabled)
+	spin_lock_irqsave(&ts->lock, flags);
+	if (ts->disabled) {
+		spin_unlock_irqrestore(&ts->lock, flags);
 		return;
+	}
 
-	spin_lock_irqsave(&ts->lock, flags);
 	ts->disabled = 1;
 	disable_irq(ts->spi->irq);
 	spin_unlock_irqrestore(&ts->lock, flags);

@@ -443,10 +446,11 @@ static void ad7877_enable(struct ad7877 *ts)
 {
 	unsigned long flags;
 
-	if (!ts->disabled)
-		return;
-
 	spin_lock_irqsave(&ts->lock, flags);
+	if (ts->disabled) {
+		spin_unlock_irqrestore(&ts->lock, flags);
+		return;
+	}
 	ts->disabled = 0;
 	enable_irq(ts->spi->irq);
 	spin_unlock_irqrestore(&ts->lock, flags);