ARM: davinci: cp-intc: unify error handling

Instead of dumping stack traces, just print a specific error message
in aintc driver.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

arch/arm/mach-davinci/cp_intc.c

@@ -177,8 +177,10 @@ davinci_cp_intc_do_init(const struct davinci_cp_intc_config *config,
 
 	davinci_cp_intc_base = ioremap(config->reg.start,
 				       resource_size(&config->reg));
-	if (WARN_ON(!davinci_cp_intc_base))
+	if (!davinci_cp_intc_base) {
+		pr_err("%s: unable to ioremap register range\n", __func__);
 		return -EINVAL;
+	}
 
 	davinci_cp_intc_write(0, DAVINCI_CP_INTC_GLOBAL_ENABLE);
 
@@ -210,8 +212,9 @@ davinci_cp_intc_do_init(const struct davinci_cp_intc_config *config,
 
 	irq_base = irq_alloc_descs(-1, 0, config->num_irqs, 0);
 	if (irq_base < 0) {
-		pr_warn("Couldn't allocate IRQ numbers\n");
-		irq_base = 0;
+		pr_err("%s: unable to allocate interrupt descriptors: %d\n",
+		       __func__, irq_base);
+		return irq_base;
 	}
 
 	/* create a legacy host */
@@ -220,7 +223,7 @@ davinci_cp_intc_do_init(const struct davinci_cp_intc_config *config,
 					&davinci_cp_intc_irq_domain_ops, NULL);
 
 	if (!davinci_cp_intc_irq_domain) {
-		pr_err("cp_intc: failed to allocate irq host!\n");
+		pr_err("%s: unable to create an interrupt domain\n", __func__);
 		return -EINVAL;
 	}