pinctrl: madera: Fix possible NULL pointer with pdata config

If we are being configured via pdata we don't necessarily have
any gpio mappings being configured that way so pdata->gpio_config
could be NULL.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/cirrus/pinctrl-madera-core.c b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
index ece41fb..c4f4d90 100644 (file)
--- a/drivers/pinctrl/cirrus/pinctrl-madera-core.c
+++ b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
@@ -1040,7 +1040,7 @@ static int madera_pin_probe(struct platform_device *pdev)
        }
 
        /* if the configuration is provided through pdata, apply it */
-       if (pdata) {
+       if (pdata && pdata->gpio_configs) {
                ret = pinctrl_register_mappings(pdata->gpio_configs,
                                                pdata->n_gpio_configs);
                if (ret) {