From: Minkyu Kang <mk7.kang@samsung.com>
Date: Mon, 25 Jan 2010 11:47:24 +0000 (+0900)
Subject: s5pc110: gpio-i2c: check gpio bank is NULL
X-Git-Tag: JA09_20100125~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c98c07208052370f929233f176e73352f623b9f2;p=kernel%2Fu-boot.git

s5pc110: gpio-i2c: check gpio bank is NULL

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
---

diff --git a/cpu/arm_cortexa8/s5pc1xx/i2c-gpio.c b/cpu/arm_cortexa8/s5pc1xx/i2c-gpio.c
index 61cde4b..b60a9c1 100644
--- a/cpu/arm_cortexa8/s5pc1xx/i2c-gpio.c
+++ b/cpu/arm_cortexa8/s5pc1xx/i2c-gpio.c
@@ -40,6 +40,9 @@ void i2c_gpio_init(struct i2c_gpio_bus *bus, int len, int index)
 	for (i = 0; i < len; i++) {
 		bank = (struct s5pc1xx_gpio_bank *)i2c_gpio[i].bus->gpio_base;
 
+		if (!bank)
+			continue;
+
 		/* SDA */
 		gpio_direction_output(bank,
 				i2c_gpio[i].bus->sda_pin, 1);
@@ -61,6 +64,8 @@ void i2c_gpio_set(int line, int value)
 	bus_index = i2c_get_bus_num();
 
 	bank = (struct s5pc1xx_gpio_bank *)i2c_gpio[bus_index].bus->gpio_base;
+	if (!bank)
+		return;
 
 	if (line)
 		line = i2c_gpio[bus_index].bus->sda_pin;
@@ -78,6 +83,8 @@ int i2c_gpio_get(void)
 	bus_index = i2c_get_bus_num();
 
 	bank = (struct s5pc1xx_gpio_bank *)i2c_gpio[bus_index].bus->gpio_base;
+	if (!bank)
+		return;
 
 	return gpio_get_value(bank, i2c_gpio[bus_index].bus->sda_pin);
 }
@@ -90,6 +97,8 @@ void i2c_gpio_dir(int dir)
 	bus_index = i2c_get_bus_num();
 
 	bank = (struct s5pc1xx_gpio_bank *)i2c_gpio[bus_index].bus->gpio_base;
+	if (!bank)
+		return;
 
 	if (dir) {
 		gpio_direction_output(bank,