pinctrl: mvebu: Convert to use devm_ioremap_resource

The resource mapped by of_iomap() isn't unmapped in error path. This
patch fix the resource leakage by using devm_ioremap_resource() instead
of of_iomap().

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Reviewed-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 5 insertions, 6 deletions

diff --git a/drivers/pinctrl/mvebu/pinctrl-mvebu.c b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
index e78c041c3c73..362446508c90 100644
--- a/drivers/pinctrl/mvebu/pinctrl-mvebu.c
+++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
@@ -593,7 +593,7 @@ static int mvebu_pinctrl_build_functions(struct platform_device *pdev,
 int mvebu_pinctrl_probe(struct platform_device *pdev)
 {
         struct mvebu_pinctrl_soc_info *soc = dev_get_platdata(&pdev->dev);
-        struct device_node *np = pdev->dev.of_node;
+        struct resource *res;
         struct mvebu_pinctrl *pctl;
         void __iomem *base;
         struct pinctrl_pin_desc *pdesc;
@@ -605,11 +605,10 @@ int mvebu_pinctrl_probe(struct platform_device *pdev)
                 return -EINVAL;
         }
 
-        base = of_iomap(np, 0);
-        if (!base) {
-                dev_err(&pdev->dev, "unable to get base address\n");
-                return -ENODEV;
-        }
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        base = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(base))
+                return PTR_ERR(base);
 
         pctl = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_pinctrl),
                         GFP_KERNEL);