1 files changed, 10 insertions, 6 deletions

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 3938c7817095..dab1410d1c0d 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -41,7 +41,7 @@ static struct cpufreq_driver *cpufreq_driver;
 static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data);
 #ifdef CONFIG_HOTPLUG_CPU
 /* This one keeps track of the previously set governor of a removed CPU */
-static DEFINE_PER_CPU(struct cpufreq_governor *, cpufreq_cpu_governor);
+static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
 #endif
 static DEFINE_SPINLOCK(cpufreq_driver_lock);
 
@@ -774,10 +774,12 @@ int cpufreq_add_dev_policy(unsigned int cpu, struct cpufreq_policy *policy,
 #ifdef CONFIG_SMP
         unsigned long flags;
         unsigned int j;
-
 #ifdef CONFIG_HOTPLUG_CPU
-        if (per_cpu(cpufreq_cpu_governor, cpu)) {
-                policy->governor = per_cpu(cpufreq_cpu_governor, cpu);
+        struct cpufreq_governor *gov;
+
+        gov = __find_governor(per_cpu(cpufreq_cpu_governor, cpu));
+        if (gov) {
+                policy->governor = gov;
                 dprintk("Restoring governor %s for cpu %d\n",
                        policy->governor->name, cpu);
         }
@@ -1111,7 +1113,8 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
 #ifdef CONFIG_SMP
 
 #ifdef CONFIG_HOTPLUG_CPU
-        per_cpu(cpufreq_cpu_governor, cpu) = data->governor;
+        strncpy(per_cpu(cpufreq_cpu_governor, cpu), data->governor->name,
+                        CPUFREQ_NAME_LEN);
 #endif
 
         /* if we have other CPUs still registered, we need to unlink them,
@@ -1135,7 +1138,8 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
                                 continue;
                         dprintk("removing link for cpu %u\n", j);
 #ifdef CONFIG_HOTPLUG_CPU
-                        per_cpu(cpufreq_cpu_governor, j) = data->governor;
+                        strncpy(per_cpu(cpufreq_cpu_governor, j),
+                                data->governor->name, CPUFREQ_NAME_LEN);
 #endif
                         cpu_sys_dev = get_cpu_sysdev(j);
                         sysfs_remove_link(&cpu_sys_dev->kobj, "cpufreq");