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| author | Daniel Lezcano <daniel.lezcano@linaro.org> | 2013-01-18 21:57:58 -0800 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2013-04-10 00:12:26 +0900 |
| commit | 5db9f436213d81f053e3f6d69d367637b02fe95e (patch) | |
| tree | e567e034340e9e32ccb24b7c80c6a8edae0bf56b /arch/arm/mach-exynos/cpuidle.c | |
| parent | 2eb89f893e44b1a9f48fa1cb6aa5e0d18ed66bb5 (diff) | |
| download | linux-3.10-5db9f436213d81f053e3f6d69d367637b02fe95e.tar.gz linux-3.10-5db9f436213d81f053e3f6d69d367637b02fe95e.tar.bz2 linux-3.10-5db9f436213d81f053e3f6d69d367637b02fe95e.zip | |
ARM: EXYNOS: handle properly the return values
The cpuidle_register_driver return value is not checked.
The init function returns always -EIO when cpuidle_register_device
fails but the error could be different.
This patch fixes that by checking the cpuidle_register_driver properly
and returning the correct value when cpuidle_register_device fails.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos/cpuidle.c')
| -rw-r--r-- | arch/arm/mach-exynos/cpuidle.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index 6ac4069f3c9..a4e50811c9c 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -194,13 +194,17 @@ static void __init exynos5_core_down_clk(void) static int __init exynos4_init_cpuidle(void) { - int cpu_id; + int cpu_id, ret; struct cpuidle_device *device; if (soc_is_exynos5250()) exynos5_core_down_clk(); - cpuidle_register_driver(&exynos4_idle_driver); + ret = cpuidle_register_driver(&exynos4_idle_driver); + if (ret) { + printk(KERN_ERR "CPUidle failed to register driver\n"); + return ret; + } for_each_cpu(cpu_id, cpu_online_mask) { device = &per_cpu(exynos4_cpuidle_device, cpu_id); @@ -210,9 +214,10 @@ static int __init exynos4_init_cpuidle(void) if (cpu_id != 0) device->state_count = 1; - if (cpuidle_register_device(device)) { - printk(KERN_ERR "CPUidle register device failed\n,"); - return -EIO; + ret = cpuidle_register_device(device); + if (ret) { + printk(KERN_ERR "CPUidle register device failed\n"); + return ret; } } |