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

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

Signed-off-by: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
---
 arch/mips/ar7/gpio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c
index 8b006addd..ae0e01b94 100644
--- 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",
-- 
2.23.0




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