irqchip/renesas-intc-irqpin: Remove intc_irqpin_priv.number_of_irqs

intc_irqpin_priv.number_of_irqs is used inside intc_irqpin_probe() only,
so it can just become a local variable.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1448376581-9202-3-git-send-email-geert+renesas@glider.be
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

drivers/irqchip/irq-renesas-intc-irqpin.c

@@ -75,7 +75,6 @@ struct intc_irqpin_priv {
 	struct intc_irqpin_iomem iomem[INTC_IRQPIN_REG_NR];
 	struct intc_irqpin_irq irq[INTC_IRQPIN_MAX];
 	unsigned int sense_bitfield_width;
-	unsigned int number_of_irqs;
 	struct platform_device *pdev;
 	struct irq_chip irq_chip;
 	struct irq_domain *irq_domain;
@@ -387,6 +386,7 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 	void (*disable_fn)(struct irq_data *d);
 	const char *name = dev_name(dev);
 	bool control_parent;
+	unsigned int nirqs;
 	int ref_irq;
 	int ret;
 	int k;
@@ -437,8 +437,8 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 		p->irq[k].requested_irq = irq->start;
 	}
 
-	p->number_of_irqs = k;
-	if (p->number_of_irqs < 1) {
+	nirqs = k;
+	if (nirqs < 1) {
 		dev_err(dev, "not enough IRQ resources\n");
 		ret = -EINVAL;
 		goto err0;
@@ -492,7 +492,7 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 	}
 
 	/* mask all interrupts using priority */
-	for (k = 0; k < p->number_of_irqs; k++)
+	for (k = 0; k < nirqs; k++)
 		intc_irqpin_mask_unmask_prio(p, k, 1);
 
 	/* clear all pending interrupts */
@@ -501,7 +501,7 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 	/* scan for shared interrupt lines */
 	ref_irq = p->irq[0].requested_irq;
 	p->shared_irqs = true;
-	for (k = 1; k < p->number_of_irqs; k++) {
+	for (k = 1; k < nirqs; k++) {
 		if (ref_irq != p->irq[k].requested_irq) {
 			p->shared_irqs = false;
 			break;
@@ -528,9 +528,8 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 	irq_chip->irq_set_wake = intc_irqpin_irq_set_wake;
 	irq_chip->flags	= IRQCHIP_MASK_ON_SUSPEND;
 
-	p->irq_domain = irq_domain_add_simple(dev->of_node, p->number_of_irqs,
-					      0, &intc_irqpin_irq_domain_ops,
-					      p);
+	p->irq_domain = irq_domain_add_simple(dev->of_node, nirqs, 0,
+					      &intc_irqpin_irq_domain_ops, p);
 	if (!p->irq_domain) {
 		ret = -ENXIO;
 		dev_err(dev, "cannot initialize irq domain\n");
@@ -548,7 +547,7 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 		}
 	} else {
 		/* request interrupts one by one */
-		for (k = 0; k < p->number_of_irqs; k++) {
+		for (k = 0; k < nirqs; k++) {
 			if (devm_request_irq(dev, p->irq[k].requested_irq,
 					     intc_irqpin_irq_handler, 0, name,
 					     &p->irq[k])) {
@@ -560,10 +559,10 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 	}
 
 	/* unmask all interrupts on prio level */
-	for (k = 0; k < p->number_of_irqs; k++)
+	for (k = 0; k < nirqs; k++)
 		intc_irqpin_mask_unmask_prio(p, k, 0);
 
-	dev_info(dev, "driving %d irqs\n", p->number_of_irqs);
+	dev_info(dev, "driving %d irqs\n", nirqs);
 
 	return 0;