2 files changed, 11 insertions, 24 deletions

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index c99c00d35d34..22e5d2ffebd8 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -993,10 +993,10 @@ static int __init devfreq_init(void)
         }
 
         devfreq_wq = create_freezable_workqueue("devfreq_wq");
-        if (IS_ERR(devfreq_wq)) {
+        if (!devfreq_wq) {
                 class_destroy(devfreq_class);
                 pr_err("%s: couldn't create workqueue\n", __FILE__);
-                return PTR_ERR(devfreq_wq);
+                return -ENOMEM;
         }
         devfreq_class->dev_groups = devfreq_groups;
 
diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index 574b16b59be5..04c164eecf25 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -18,7 +18,6 @@
 #include <linux/opp.h>
 #include <linux/slab.h>
 #include <linux/suspend.h>
-#include <linux/opp.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
@@ -351,20 +350,18 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 
         err = exynos5250_init_int_tables(data);
         if (err)
-                goto err_regulator;
+                return err;
 
-        data->vdd_int = regulator_get(dev, "vdd_int");
+        data->vdd_int = devm_regulator_get(dev, "vdd_int");
         if (IS_ERR(data->vdd_int)) {
                 dev_err(dev, "Cannot get the regulator \"vdd_int\"\n");
-                err = PTR_ERR(data->vdd_int);
-                goto err_regulator;
+                return PTR_ERR(data->vdd_int);
         }
 
-        data->int_clk = clk_get(dev, "int_clk");
+        data->int_clk = devm_clk_get(dev, "int_clk");
         if (IS_ERR(data->int_clk)) {
                 dev_err(dev, "Cannot get clock \"int_clk\"\n");
-                err = PTR_ERR(data->int_clk);
-                goto err_clock;
+                return PTR_ERR(data->int_clk);
         }
 
         rcu_read_lock();
@@ -374,8 +371,7 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
                 rcu_read_unlock();
                 dev_err(dev, "Invalid initial frequency %lu kHz.\n",
                        exynos5_devfreq_int_profile.initial_freq);
-                err = PTR_ERR(opp);
-                goto err_opp_add;
+                return PTR_ERR(opp);
         }
         initial_freq = opp_get_freq(opp);
         initial_volt = opp_get_voltage(opp);
@@ -385,12 +381,12 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
         err = clk_set_rate(data->int_clk, initial_freq * 1000);
         if (err) {
                 dev_err(dev, "Failed to set initial frequency\n");
-                goto err_opp_add;
+                return err;
         }
 
         err = exynos5_int_setvolt(data, initial_volt);
         if (err)
-                goto err_opp_add;
+                return err;
 
         platform_set_drvdata(pdev, data);
 
@@ -419,12 +415,6 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 
 err_devfreq_add:
         devfreq_remove_device(data->devfreq);
-        platform_set_drvdata(pdev, NULL);
-err_opp_add:
-        clk_put(data->int_clk);
-err_clock:
-        regulator_put(data->vdd_int);
-err_regulator:
         return err;
 }
 
@@ -435,9 +425,6 @@ static int exynos5_busfreq_int_remove(struct platform_device *pdev)
         pm_qos_remove_request(&data->int_req);
         unregister_pm_notifier(&data->pm_notifier);
         devfreq_remove_device(data->devfreq);
-        regulator_put(data->vdd_int);
-        clk_put(data->int_clk);
-        platform_set_drvdata(pdev, NULL);
 
         return 0;
 }
@@ -479,7 +466,7 @@ static int __init exynos5_busfreq_int_init(void)
 
         exynos5_devfreq_pdev =
                 platform_device_register_simple("exynos5-bus-int", -1, NULL, 0);
-        if (IS_ERR_OR_NULL(exynos5_devfreq_pdev)) {
+        if (IS_ERR(exynos5_devfreq_pdev)) {
                 ret = PTR_ERR(exynos5_devfreq_pdev);
                 goto out1;
         }