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gpio: max732x: Fix error handling in probe()

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This fixes error handling in the function max732x_probe by checking
if the calls to the function max732x_readb fail by returning a error
code.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Nicholas Krause 2015-08-18 09:55:44 -04:00 committed by Linus Walleij
parent 5d9452e7c5
commit 78de5d5220
1 changed files with 8 additions and 3 deletions
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11
drivers/gpio/gpio-max732x.c
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@ -685,9 +685,14 @@ static int max732x_probe(struct i2c_client *client,
mutex_init(&chip->lock);
max732x_readb(chip, is_group_a(chip, 0), &chip->reg_out[0]);
if (nr_port > 8)
max732x_readb(chip, is_group_a(chip, 8), &chip->reg_out[1]);
ret = max732x_readb(chip, is_group_a(chip, 0), &chip->reg_out[0]);
if (ret)
goto out_failed;
if (nr_port > 8) {
ret = max732x_readb(chip, is_group_a(chip, 8), &chip->reg_out[1]);
if (ret)
goto out_failed;
}
ret = gpiochip_add(&chip->gpio_chip);
if (ret)