[POWERPC] 85xx: mpc85xx_ads: add in missing of_node_put()

Add in missing of_node_put() after cpm2_pic_init(). This and other coding
style cleanups as suggested by Stephen Rothwell.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/platforms/85xx/mpc85xx_ads.c

@@ -52,9 +52,9 @@ static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
 {
 	int cascade_irq;
 
-	while ((cascade_irq = cpm2_get_irq()) >= 0) {
+	while ((cascade_irq = cpm2_get_irq()) >= 0)
 		generic_handle_irq(cascade_irq);
-	}
+
 	desc->chip->eoi(irq);
 }
 
@@ -70,13 +70,12 @@ static void __init mpc85xx_ads_pic_init(void)
 #endif
 
 	np = of_find_node_by_type(np, "open-pic");
-
-	if (np == NULL) {
+	if (!np) {
 		printk(KERN_ERR "Could not find open-pic node\n");
 		return;
 	}
 
-	if(of_address_to_resource(np, 0, &r)) {
+	if (of_address_to_resource(np, 0, &r)) {
 		printk(KERN_ERR "Could not map mpic register space\n");
 		of_node_put(np);
 		return;
@@ -100,6 +99,7 @@ static void __init mpc85xx_ads_pic_init(void)
 	irq = irq_of_parse_and_map(np, 0);
 
 	cpm2_pic_init(np);
+	of_node_put(np);
 	set_irq_chained_handler(irq, cpm2_cascade);
 #endif
 }
@@ -112,7 +112,7 @@ struct cpm_pin {
 	int port, pin, flags;
 };
 
-static struct cpm_pin mpc8560_ads_pins[] = {
+static const struct cpm_pin mpc8560_ads_pins[] = {
 	/* SCC1 */
 	{3, 29, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 	{3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},