From: Axel Lin Date: Tue, 13 Nov 2012 12:20:50 +0000 (+0800) Subject: pinctrl: spear: Make get_gpio_pingroup return NULL when no gpio_pingroup found X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=6f37b1b4d407d6abcd24c4519cd892903229cd95;p=deliverable%2Flinux.git pinctrl: spear: Make get_gpio_pingroup return NULL when no gpio_pingroup found Currently get_gpio_pingroup() may return NULL or ERR_PTR(-EINVAL) when no gpio_pingroup found. The caller in gpio_request_endisable() only checks if the return value is NULL. Return ERR_PTR(-EINVAL) for get_gpio_pingroup() causes problem and seems not necessary. Signed-off-by: Axel Lin Acked-by: Viresh Kumar Signed-off-by: Linus Walleij --- diff --git a/drivers/pinctrl/spear/pinctrl-spear.c b/drivers/pinctrl/spear/pinctrl-spear.c index add933286e94..bf78eb7f85c4 100644 --- a/drivers/pinctrl/spear/pinctrl-spear.c +++ b/drivers/pinctrl/spear/pinctrl-spear.c @@ -286,12 +286,12 @@ static struct spear_gpio_pingroup *get_gpio_pingroup(struct spear_pmx *pmx, unsigned pin) { struct spear_gpio_pingroup *gpio_pingroup; - int i = 0, j; + int i, j; if (!pmx->machdata->gpio_pingroups) return NULL; - for (; i < pmx->machdata->ngpio_pingroups; i++) { + for (i = 0; i < pmx->machdata->ngpio_pingroups; i++) { gpio_pingroup = &pmx->machdata->gpio_pingroups[i]; for (j = 0; j < gpio_pingroup->npins; j++) { @@ -300,7 +300,7 @@ static struct spear_gpio_pingroup *get_gpio_pingroup(struct spear_pmx *pmx, } } - return ERR_PTR(-EINVAL); + return NULL; } static int gpio_request_endisable(struct pinctrl_dev *pctldev,