linux-kernel - [PATCH v3 32/37] ARM: davinci: cp-intc: unify error handling

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Message-Id: <20190212103835.7768-33-brgl@bgdev.pl>
Date:   Tue, 12 Feb 2019 11:38:30 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        David Lechner <david@...hnology.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH v3 32/37] ARM: davinci: cp-intc: unify error handling

From: Bartosz Golaszewski <bgolaszewski@...libre.com>

Use WARN_ON() on eny error in cp-intc initialization and drop all
custom error messages.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
Reviewed-by: David Lechner <david@...hnology.com>
---
 arch/arm/mach-davinci/cp_intc.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-davinci/cp_intc.c b/arch/arm/mach-davinci/cp_intc.c
index 25221dfe8a20..1bf11fa8be76 100644
--- a/arch/arm/mach-davinci/cp_intc.c
+++ b/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;
 	}
 
-- 
2.20.1