[CPUFREQ] check return value of sysfs_create_file

Eliminate build warning (sysfs_create_file return value must be checked)

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>

1 files changed, 10 insertions, 5 deletions

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index eb37fba9b7ef..0521427a571e 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -826,13 +826,18 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
         /* set up files for this cpu device */
         drv_attr = cpufreq_driver->attr;
         while ((drv_attr) && (*drv_attr)) {
-                sysfs_create_file(&policy->kobj, &((*drv_attr)->attr));
+                if (sysfs_create_file(&policy->kobj, &((*drv_attr)->attr)))
+                        goto err_out_driver_exit;
                 drv_attr++;
         }
-        if (cpufreq_driver->get)
-                sysfs_create_file(&policy->kobj, &cpuinfo_cur_freq.attr);
-        if (cpufreq_driver->target)
-                sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr);
+        if (cpufreq_driver->get){
+                if (sysfs_create_file(&policy->kobj, &cpuinfo_cur_freq.attr))
+                        goto err_out_driver_exit;
+        }
+        if (cpufreq_driver->target){
+                if (sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr))
+                        goto err_out_driver_exit;
+        }
 
         spin_lock_irqsave(&cpufreq_driver_lock, flags);
         for_each_cpu_mask(j, policy->cpus) {