gpio: mxs: Unmap region obtained by of_iomap

Free memory mapping, if mxs_gpio_probe is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index b9daa0bf32a4..ee1724806f46 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -308,8 +308,10 @@ static int mxs_gpio_probe(struct platform_device *pdev)
         writel(~0U, port->base + PINCTRL_IRQSTAT(port) + MXS_CLR);
 
         irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
-        if (irq_base < 0)
-                return irq_base;
+        if (irq_base < 0) {
+                err = irq_base;
+                goto out_iounmap;
+        }
 
         port->domain = irq_domain_add_legacy(np, 32, irq_base, 0,
                                              &irq_domain_simple_ops, NULL);
@@ -349,6 +351,8 @@ out_irqdomain_remove:
         irq_domain_remove(port->domain);
 out_irqdesc_free:
         irq_free_descs(irq_base, 32);
+out_iounmap:
+        iounmap(port->base);
         return err;
 }