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gpio-adnp: Use common error handling code in adnp_gpio_dbg_show()

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Add a jump target so that a bit of exception handling can be better reused
at the end of this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Markus Elfring 2017-10-22 20:21:55 +02:00 committed by Linus Walleij
parent 5a24d4b601
commit 5ac9d2df5b
1 changed files with 13 additions and 16 deletions
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29
drivers/gpio/gpio-adnp.c
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@ -192,28 +192,20 @@ static void adnp_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
mutex_lock(&adnp->i2c_lock);
err = adnp_read(adnp, GPIO_DDR(adnp) + i, &ddr);
if (err < 0) {
mutex_unlock(&adnp->i2c_lock);
return;
}
if (err < 0)
goto unlock;
err = adnp_read(adnp, GPIO_PLR(adnp) + i, &plr);
if (err < 0) {
mutex_unlock(&adnp->i2c_lock);
return;
}
if (err < 0)
goto unlock;
err = adnp_read(adnp, GPIO_IER(adnp) + i, &ier);
if (err < 0) {
mutex_unlock(&adnp->i2c_lock);
return;
}
if (err < 0)
goto unlock;
err = adnp_read(adnp, GPIO_ISR(adnp) + i, &isr);
if (err < 0) {
mutex_unlock(&adnp->i2c_lock);
return;
}
if (err < 0)
goto unlock;
mutex_unlock(&adnp->i2c_lock);
@ -240,6 +232,11 @@ static void adnp_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
direction, level, interrupt, pending);
}
}
return;
unlock:
mutex_unlock(&adnp->i2c_lock);
}
static int adnp_gpio_setup(struct adnp *adnp, unsigned int num_gpios)