gpio: pca953x: remove redundant assignments

There are few redundant assignments of ret variable which is updated anyway.
Remove them for good.

While here, correct indentation of the constant definition and remove one empty
line.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 7630285..d8233be 100644 (file)
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -44,7 +44,7 @@
 
 #define PCA_GPIO_MASK          0x00FF
 #define PCA_INT                        0x0100
-#define PCA_PCAL                       0x0200
+#define PCA_PCAL               0x0200
 #define PCA953X_TYPE           0x1000
 #define PCA957X_TYPE           0x2000
 #define PCA_TYPE_MASK          0xF000
@@ -135,7 +135,7 @@ static int pca953x_read_single(struct pca953x_chip *chip, int reg, u32 *val,
 static int pca953x_write_single(struct pca953x_chip *chip, int reg, u32 val,
                                int off)
 {
-       int ret = 0;
+       int ret;
        int bank_shift = fls((chip->gpio_chip.ngpio - 1) / BANK_SZ);
        int offset = off / BANK_SZ;
 
@@ -235,7 +235,6 @@ static int pca953x_gpio_direction_input(struct gpio_chip *gc, unsigned off)
                goto exit;
 
        chip->reg_direction[off / BANK_SZ] = reg_val;
-       ret = 0;
 exit:
        mutex_unlock(&chip->i2c_lock);
        return ret;
@@ -286,7 +285,6 @@ static int pca953x_gpio_direction_output(struct gpio_chip *gc,
                goto exit;
 
        chip->reg_direction[off / BANK_SZ] = reg_val;
-       ret = 0;
 exit:
        mutex_unlock(&chip->i2c_lock);
        return ret;
@@ -351,7 +349,6 @@ exit:
        mutex_unlock(&chip->i2c_lock);
 }
 
-
 static void pca953x_gpio_set_multiple(struct gpio_chip *gc,
                unsigned long *mask, unsigned long *bits)
 {
@@ -820,7 +817,7 @@ static int pca953x_remove(struct i2c_client *client)
 {
        struct pca953x_platform_data *pdata = dev_get_platdata(&client->dev);
        struct pca953x_chip *chip = i2c_get_clientdata(client);
-       int ret = 0;
+       int ret;
 
        if (pdata && pdata->teardown) {
                ret = pdata->teardown(client, chip->gpio_chip.base,