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[17/17] ARM: OMAP3: cpuidle - set global variables static

Message ID 1333532539-10298-18-git-send-email-daniel.lezcano@linaro.org
State New
Headers show

Commit Message

Daniel Lezcano April 4, 2012, 9:42 a.m. UTC 
and check the powerdomain lookup is successful.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
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Patch

diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 882d349..413aac4 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -75,7 +75,7 @@  static struct omap3_idle_statedata omap3_idle_data[OMAP3_NUM_STATES] = {
 	},
 };
 
-struct powerdomain *mpu_pd, *core_pd, *per_pd, *cam_pd;
+static struct powerdomain *mpu_pd, *core_pd, *per_pd, *cam_pd;
 
 static int _cpuidle_allow_idle(struct powerdomain *pwrdm,
 				struct clockdomain *clkdm)
@@ -364,6 +364,9 @@  int __init omap3_idle_init(void)
 	per_pd = pwrdm_lookup("per_pwrdm");
 	cam_pd = pwrdm_lookup("cam_pwrdm");
 
+	if (!mpu_pd || !core_pd || !per_pd || !cam_pd)
+		return -ENODEV;
+
 	/*
 	 * Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot
 	 * enable OFF mode in a stable form for previous revisions.