| Message ID | 20160826152546.604384-2-arnd@arndb.de |
|---|---|
| State | New |
| Headers | show |
| Series | [1/5] gpio: pca954x: fix undefined error code from remove | expand |
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index cbe2824461eb..b9d31d737dbf 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -853,6 +853,8 @@ static int pca953x_remove(struct i2c_client *client) if (ret < 0) dev_err(&client->dev, "%s failed, %d\n", "teardown", ret); + } else { + ret = 0; } regulator_disable(chip->regulator);
The recent addition of the regulator support has led to the pca953x_remove function returning uninitialized data when no platform data pointer is provided, as gcc warns when using -Wmaybe-uninitialized: drivers/gpio/gpio-pca953x.c: In function 'pca953x_remove': drivers/gpio/gpio-pca953x.c:860:9: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized] This restores the previous behavior, returning 0 on success. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: e23efa311110 ("gpio: pca954x: Add vcc regulator and enable it") Cc: Phil Reid <preid@electromag.com.au> --- Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: linux-gpio@vger.kernel.org drivers/gpio/gpio-pca953x.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html