On 11/15/2012 05:58 AM, Axel Lin :
> of_match_device() may return NULL.
>
> Signed-off-by: Axel Lin <axel....@ingics.com>
Seems sensible,
Acked-by: Nicolas Ferre <nicolas.fe...@atmel.com>
> ---
> This resend CC Jean-Christophe.
>
> drivers/pinctrl/pinctrl-at91.c | 17 +++++++++++++----
> 1 file changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
> index 8490a55..32006c8 100644
> --- a/drivers/pinctrl/pinctrl-at91.c
> +++ b/drivers/pinctrl/pinctrl-at91.c
> @@ -829,13 +829,18 @@ static int __devinit at91_pinctrl_probe_dt(struct
> platform_device *pdev,
> uint32_t *tmp;
> struct device_node *np = pdev->dev.of_node;
> struct device_node *child;
> + const struct of_device_id *match;
>
> if (!np)
> return -ENODEV;
>
> + match = of_match_device(at91_pinctrl_of_match, &pdev->dev)->data;
> + if (!match)
> + return -ENODEV;
> +
> info->dev = &pdev->dev;
> - info->ops = (struct at91_pinctrl_mux_ops*)
> - of_match_device(at91_pinctrl_of_match, &pdev->dev)->data;
> + info->ops = (struct at91_pinctrl_mux_ops *) match->data;
> +
> at91_pinctrl_child_count(info, np);
>
> if (info->nbanks < 1) {
> @@ -1359,6 +1364,7 @@ static struct of_device_id at91_gpio_of_match[]
> __devinitdata = {
> static int __devinit at91_gpio_probe(struct platform_device *pdev)
> {
> struct device_node *np = pdev->dev.of_node;
> + const struct of_device_id *match;
> struct resource *res;
> struct at91_gpio_chip *at91_chip = NULL;
> struct gpio_chip *chip;
> @@ -1399,8 +1405,11 @@ static int __devinit at91_gpio_probe(struct
> platform_device *pdev)
> goto err;
> }
>
> - at91_chip->ops = (struct at91_pinctrl_mux_ops*)
> - of_match_device(at91_gpio_of_match, &pdev->dev)->data;
> + match = of_match_device(at91_gpio_of_match, &pdev->dev);
> + if (!match)
> + return -ENODEV;
> +
> + at91_chip->ops = (struct at91_pinctrl_mux_ops *) match->data;
> at91_chip->pioc_virq = irq;
> at91_chip->pioc_idx = alias_idx;
>
>
--
Nicolas Ferre
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