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Message-ID: <1432244260-14908-3-git-send-email-ezequiel.garcia@imgtec.com>
Date: Thu, 21 May 2015 18:37:35 -0300
From: Ezequiel Garcia <ezequiel.garcia@...tec.com>
To: <linux-kernel@...r.kernel.org>, <linux-mips@...ux-mips.org>,
"Daniel Lezcano" <daniel.lezcano@...aro.org>,
<devicetree@...r.kernel.org>
CC: Andrew Bresticker <abrestic@...omium.org>,
James Hartley <james.hartley@...tec.com>,
James Hogan <james.hogan@...tec.com>,
"Thomas Gleixner" <tglx@...utronix.de>,
<Damien.Horsley@...tec.com>, <Govindraj.Raja@...tec.com>,
Ezequiel Garcia <ezequiel.garcia@...tec.com>
Subject: [PATCH 2/7] clocksource: mips-gic: Add missing error returns checks
This commit adds the required checks on the functions that return
an error. Some of them are not critical, so only a warning is
printed.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@...tec.com>
---
drivers/clocksource/mips-gic-timer.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c
index 913585d..c4352f0 100644
--- a/drivers/clocksource/mips-gic-timer.c
+++ b/drivers/clocksource/mips-gic-timer.c
@@ -100,12 +100,18 @@ static struct notifier_block gic_cpu_nb = {
static int gic_clockevent_init(void)
{
+ int ret;
+
if (!cpu_has_counter || !gic_frequency)
return -ENXIO;
- setup_percpu_irq(gic_timer_irq, &gic_compare_irqaction);
+ ret = setup_percpu_irq(gic_timer_irq, &gic_compare_irqaction);
+ if (ret < 0)
+ return ret;
- register_cpu_notifier(&gic_cpu_nb);
+ ret = register_cpu_notifier(&gic_cpu_nb);
+ if (ret < 0)
+ pr_warn("GIC: Unable to register CPU notifier\n");
gic_clockevent_cpu_init(this_cpu_ptr(&gic_clockevent_device));
@@ -125,13 +131,17 @@ static struct clocksource gic_clocksource = {
static void __init __gic_clocksource_init(void)
{
+ int ret;
+
/* Set clocksource mask. */
gic_clocksource.mask = CLOCKSOURCE_MASK(gic_get_count_width());
/* Calculate a somewhat reasonable rating value. */
gic_clocksource.rating = 200 + gic_frequency / 10000000;
- clocksource_register_hz(&gic_clocksource, gic_frequency);
+ ret = clocksource_register_hz(&gic_clocksource, gic_frequency);
+ if (ret < 0)
+ pr_warn("GIC: Unable to register clocksource\n");
gic_clockevent_init();
--
2.3.3
--
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