From 6f37b1b4d407d6abcd24c4519cd892903229cd95 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 13 Nov 2012 20:20:50 +0800
Subject: 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 <axel.lin@ingics.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/spear/pinctrl-spear.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/pinctrl/spear')

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,
-- 
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