Use devm_pinctrl_register() for pin control registration.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
        pctl->pctl_desc.pmxops = &stm32_pmx_ops;
        pctl->dev = &pdev->dev;
 
-       pctl->pctl_dev = pinctrl_register(&pctl->pctl_desc, &pdev->dev, pctl);
-       if (!pctl->pctl_dev) {
+       pctl->pctl_dev = devm_pinctrl_register(&pdev->dev, &pctl->pctl_desc,
+                                              pctl);
+       if (IS_ERR(pctl->pctl_dev)) {
                dev_err(&pdev->dev, "Failed pinctrl registration\n");
-               return -EINVAL;
+               return PTR_ERR(pctl->pctl_dev);
        }
 
        for (i = 0; i < pctl->nbanks; i++)