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SubjectRe: [PATCH] pinctrl: pistachio: Use common error handling code in pistachio_gpio_register()
Markus,

On Mon, Oct 30, 2017 at 10:51 AM, SF Markus Elfring
<elfring@users.sourceforge.net> wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Mon, 30 Oct 2017 18:40:10 +0100
>
> Adjust jump targets 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>

Acked-by: Andrew Bresticker <abrestic@chromium.org>

> ---
> drivers/pinctrl/pinctrl-pistachio.c | 19 ++++++++++---------
> 1 file changed, 10 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c
> index 55375b1b3cc8..b314eb61bf35 100644
> --- a/drivers/pinctrl/pinctrl-pistachio.c
> +++ b/drivers/pinctrl/pinctrl-pistachio.c
> @@ -1362,21 +1362,21 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl)
> if (!child) {
> dev_err(pctl->dev, "No node for bank %u\n", i);
> ret = -ENODEV;
> - goto err;
> + goto remove_chips;
> }
>
> if (!of_find_property(child, "gpio-controller", NULL)) {
> dev_err(pctl->dev,
> "No gpio-controller property for bank %u\n", i);
> ret = -ENODEV;
> - goto err;
> + goto remove_chips;
> }
>
> irq = irq_of_parse_and_map(child, 0);
> if (irq < 0) {
> dev_err(pctl->dev, "No IRQ for bank %u: %d\n", i, irq);
> ret = irq;
> - goto err;
> + goto remove_chips;
> }
>
> bank = &pctl->gpio_banks[i];
> @@ -1389,7 +1389,7 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl)
> if (ret < 0) {
> dev_err(pctl->dev, "Failed to add GPIO chip %u: %d\n",
> i, ret);
> - goto err;
> + goto remove_chips;
> }
>
> ret = gpiochip_irqchip_add(&bank->gpio_chip, &bank->irq_chip,
> @@ -1397,8 +1397,7 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl)
> if (ret < 0) {
> dev_err(pctl->dev, "Failed to add IRQ chip %u: %d\n",
> i, ret);
> - gpiochip_remove(&bank->gpio_chip);
> - goto err;
> + goto remove_chip;
> }
> gpiochip_set_chained_irqchip(&bank->gpio_chip, &bank->irq_chip,
> irq, pistachio_gpio_irq_handler);
> @@ -1409,13 +1408,15 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl)
> if (ret < 0) {
> dev_err(pctl->dev, "Failed to add GPIO range %u: %d\n",
> i, ret);
> - gpiochip_remove(&bank->gpio_chip);
> - goto err;
> + goto remove_chip;
> }
> }
>
> return 0;
> -err:
> +
> +remove_chip:
> + gpiochip_remove(&bank->gpio_chip);
> +remove_chips:
> for (; i > 0; i--) {
> bank = &pctl->gpio_banks[i - 1];
> gpiochip_remove(&bank->gpio_chip);
> --
> 2.14.3
>

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