pinctrl: mediatek: simplify the return expression of mtk_pinconf_bias_disable_set_rev1()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c

···
 int mtk_pinconf_bias_disable_set_rev1(struct mtk_pinctrl *hw,
 				      const struct mtk_pin_desc *desc)
 {
-	int err;
-
-	err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_PULLEN,
-			       MTK_DISABLE);
-	if (err)
-		return err;
-
-	return 0;
+	return mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_PULLEN,
+				MTK_DISABLE);
 }
 EXPORT_SYMBOL_GPL(mtk_pinconf_bias_disable_set_rev1);