mips: ar7: add missing iounmap() on error in ar7_gpio_init

Add the missing iounmap() of gpch->regs before return from
ar7_gpio_init() in the error handling case.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c
index 8b006addd6ba524a3bc33e641669fe6b5ced8b62..ae0e01b9438ff54d368ba48e009b021d5f59253d 100644 (file)
--- a/arch/mips/ar7/gpio.c
+++ b/arch/mips/ar7/gpio.c
@@ -319,6 +319,7 @@ int __init ar7_gpio_init(void)
        if (ret) {
                printk(KERN_ERR "%s: failed to add gpiochip\n",
                                        gpch->chip.label);
+               iounmap(gpch->regs);
                return ret;
        }
        printk(KERN_INFO "%s: registered %d GPIOs\n",