diff --git a/arch/arm/mach-s5p64x0/gpio.c b/arch/arm/mach-s5p64x0/gpio.c
index 131eefe0c9f2fc57369a08f48871f1fba48b2220..39159dd5a29ac7bf091e457a03d6eed14ef6573d 100644
--- a/arch/arm/mach-s5p64x0/gpio.c
+++ b/arch/arm/mach-s5p64x0/gpio.c
@@ -132,7 +132,6 @@ int s5p64x0_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip,
 {
 	void __iomem *reg = chip->base;
 	unsigned int shift;
-	unsigned long flags;
 	u32 con;
 
 	switch (off) {
@@ -158,15 +157,11 @@ int s5p64x0_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip,
 		cfg <<= shift;
 	}
 
-	s3c_gpio_lock(chip, flags);
-
 	con = __raw_readl(reg);
 	con &= ~(0xf << shift);
 	con |= cfg;
 	__raw_writel(con, reg);
 
-	s3c_gpio_unlock(chip, flags);
-
 	return 0;
 }