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gpio: pca953x: propagate the errno from the chip_init functions

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Initializing the chips may return with an error, but this error gets
dropped in probe(). Propagate this further to the driver core. Also,
simplify returning the error in one of the init functions.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Wolfram Sang 2011-10-14 15:32:00 +02:00 committed by Grant Likely
parent f0eb824bee
commit 7ea2aa2046
1 changed files with 5 additions and 6 deletions
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11
drivers/gpio/gpio-pca953x.c
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@ -595,9 +595,6 @@ static int __devinit device_pca953x_init(struct pca953x_chip *chip, int invert)
/* set platform specific polarity inversion */
ret = pca953x_write_reg(chip, PCA953X_INVERT, invert);
if (ret)
goto out;
return 0;
out:
return ret;
}
@ -639,7 +636,7 @@ static int __devinit pca953x_probe(struct i2c_client *client,
struct pca953x_platform_data *pdata;
struct pca953x_chip *chip;
int irq_base=0, invert=0;
int ret = 0;
int ret;
chip = kzalloc(sizeof(struct pca953x_chip), GFP_KERNEL);
if (chip == NULL)
@ -672,9 +669,11 @@ static int __devinit pca953x_probe(struct i2c_client *client,
pca953x_setup_gpio(chip, id->driver_data & PCA_GPIO_MASK);
if (chip->chip_type == PCA953X_TYPE)
device_pca953x_init(chip, invert);
ret = device_pca953x_init(chip, invert);
else
device_pca957x_init(chip, invert);
ret = device_pca957x_init(chip, invert);
if (ret)
goto out_failed;
ret = pca953x_irq_setup(chip, id, irq_base);
if (ret)