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 (file)
--- 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,