From daa37cee791722711bf15b9635d007014e73ad3d Mon Sep 17 00:00:00 2001 From: Daniel Lezcano Date: Fri, 4 May 2012 19:18:40 +0200 Subject: [PATCH] ARM: OMAP3: cpuidle - check the powerdomain lookup At init time, check the powerdomains lookup is successful otherwise exit the cpuidle driver init function with -ENODEV like what is done for the omap3 cpuidle driver. Signed-off-by: Daniel Lezcano Reviewed-by: Jean Pihet Tested-by: Kevin Hilman Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/cpuidle34xx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index f682e170325a..207bc1c7759f 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -363,6 +363,9 @@ 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; + cpuidle_register_driver(&omap3_idle_driver); dev = &per_cpu(omap3_idle_dev, smp_processor_id()); -- 2.39.5