cpufreq: s5pv210: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

drivers/cpufreq/s5pv210-cpufreq.c

@@ -590,6 +590,7 @@ static struct notifier_block s5pv210_cpufreq_reboot_notifier = {
 
 static int s5pv210_cpufreq_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct device_node *np;
 	int id, result = 0;
 
@@ -602,21 +603,14 @@ static int s5pv210_cpufreq_probe(struct platform_device *pdev)
 	 * cpufreq-dt driver.
 	 */
 	arm_regulator = regulator_get(NULL, "vddarm");
-	if (IS_ERR(arm_regulator)) {
+	if (IS_ERR(arm_regulator))
-		if (PTR_ERR(arm_regulator) == -EPROBE_DEFER)
+		return dev_err_probe(dev, PTR_ERR(arm_regulator),
-			pr_debug("vddarm regulator not ready, defer\n");
+				     "failed to get regulator vddarm\n");
-		else
-			pr_err("failed to get regulator vddarm\n");
-		return PTR_ERR(arm_regulator);
-	}
 
 	int_regulator = regulator_get(NULL, "vddint");
 	if (IS_ERR(int_regulator)) {
-		if (PTR_ERR(int_regulator) == -EPROBE_DEFER)
+		result = dev_err_probe(dev, PTR_ERR(int_regulator),
-			pr_debug("vddint regulator not ready, defer\n");
+				       "failed to get regulator vddint\n");
-		else
-			pr_err("failed to get regulator vddint\n");
-		result = PTR_ERR(int_regulator);
 		goto err_int_regulator;
 	}