gpio: iop: fix devm_ioremap_resource() return value checking
devm_ioremap_resource() returns a pointer to the remapped memory or
an ERR_PTR() encoded error code on failure. Fix the check inside
iop3xx_gpio_probe() accordingly.
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
index c22a61b..0a5e9d3 100644
--- a/drivers/gpio/gpio-iop.c
+++ b/drivers/gpio/gpio-iop.c
@@ -111,6 +111,8 @@
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
return gpiochip_add(&iop3xx_chip);
}