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Subject[PATCH 2.6.20-rc3] cpufreq: check sysfs_create_link return value
From
Trivial patch to check sysfs_create_link return values. Fail gracefully 
if needed.

Signed-off-by: Ahmed Darwish <darwish.07@gmail.com>

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index d913304..72ee576 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -722,8 +722,13 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
spin_unlock_irqrestore(&cpufreq_driver_lock, flags);

dprintk("CPU already managed, adding link\n");
- sysfs_create_link(&sys_dev->kobj,
- &managed_policy->kobj, "cpufreq");
+ ret = sysfs_create_link(&sys_dev->kobj,
+ &managed_policy->kobj,
+ "cpufreq");
+ if (ret) {
+ mutex_unlock(&policy->lock);
+ goto err_out_driver_exit;
+ }

cpufreq_debug_enable_ratelimit();
mutex_unlock(&policy->lock);
@@ -770,8 +775,12 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
dprintk("CPU %u already managed, adding link\n", j);
cpufreq_cpu_get(cpu);
cpu_sys_dev = get_cpu_sysdev(j);
- sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj,
- "cpufreq");
+ ret = sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj,
+ "cpufreq");
+ if (ret) {
+ mutex_unlock(&policy->lock);
+ goto err_out_unregister;
+ }
}

policy->governor = NULL; /* to assure that the starting sequence is

--
Ahmed S. Darwish
http://darwish-07.blogspot.com
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