Input: pwm-vibra - 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 <krzysztof.kozlowski@linaro.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230625162817.100397-4-krzysztof.kozlowski@linaro.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/misc/pwm-vibra.c

@@ -140,32 +140,20 @@ static int pwm_vibrator_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc");
-	err = PTR_ERR_OR_ZERO(vibrator->vcc);
-	if (err) {
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Failed to request regulator: %d\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(vibrator->vcc))
+		return dev_err_probe(&pdev->dev, PTR_ERR(vibrator->vcc),
+				     "Failed to request regulator\n");
 
 	vibrator->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable",
 							GPIOD_OUT_LOW);
-	err = PTR_ERR_OR_ZERO(vibrator->enable_gpio);
-	if (err) {
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Failed to request enable gpio: %d\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(vibrator->enable_gpio))
+		return dev_err_probe(&pdev->dev, PTR_ERR(vibrator->enable_gpio),
+				     "Failed to request enable gpio\n");
 
 	vibrator->pwm = devm_pwm_get(&pdev->dev, "enable");
-	err = PTR_ERR_OR_ZERO(vibrator->pwm);
-	if (err) {
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Failed to request main pwm: %d\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(vibrator->pwm))
+		return dev_err_probe(&pdev->dev, PTR_ERR(vibrator->pwm),
+				     "Failed to request main pwm\n");
 
 	INIT_WORK(&vibrator->play_work, pwm_vibrator_play_work);