gpio: pca953x: initialize ret to zero to avoid returning garbage

ret is not initialized so it contains garbage.  Ensure garbage
is not returned in the case that pdata && pdata->teardown is false
by initializing ret to 0.

Signed-off-by: Colin Ian King <colin.king@canonical.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 5d059866d17acf4eb397f85adef7481fdde4cdcc..f170c5678289b5c892f0ffdceae5792ca5f0380e 100644 (file)
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -848,7 +848,7 @@ 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;
+       int ret = 0;
 
        if (pdata && pdata->teardown) {
                ret = pdata->teardown(client, chip->gpio_chip.base,