pinctrl: single: fix missing error code in pcs_probe()

If pinctrl_enable() fails in pcs_probe(), it should return the error code.

Fixes: 8f773bf ("pinctrl: single: fix possible memory leak when pinctrl_enable() fails")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/20240819024625.154441-1-yangyingliang@huaweicloud.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: Yang Yingliang

drivers/pinctrl/pinctrl-single.c

@@ -1911,7 +1911,8 @@ static int pcs_probe(struct platform_device *pdev)
 
 	dev_info(pcs->dev, "%i pins, size %u\n", pcs->desc.npins, pcs->size);
 
-	if (pinctrl_enable(pcs->pctl))
+	ret = pinctrl_enable(pcs->pctl);
+	if (ret)
 		goto free;
 
 	return 0;