[CPUFREQ] check sysfs_create_link return value

[sfrench/cifs-2.6.git] / drivers / cpufreq / cpufreq.c

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 9fb2edf366119bff78e252f5d4fd89d62e350cb8..a45cc89e387a3ee14ba2afcda2cb09ac5303b1f0 100644 (file)
--- 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
@@ -959,7 +968,7 @@ static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq,
 
 
 /**
- * cpufreq_quick_get - get the CPU frequency (in kHz) frpm policy->cur
+ * cpufreq_quick_get - get the CPU frequency (in kHz) from policy->cur
  * @cpu: CPU number
  *
  * This is the last known freq, without actually getting it from the driver.