linux-kernel - [PATCH] pinctrl: st: Fix checking return value of syscon_regmap_lookup_by

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Date:	Fri, 28 Jun 2013 18:33:48 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Srinivas KANDAGATLA <srinivas.kandagatla@...com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] pinctrl: st: Fix checking return value of
 syscon_regmap_lookup_by_phandle()

syscon_regmap_lookup_by_phandle() returns ERR_PTR on error.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/pinctrl/pinctrl-st.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 7effedf..f95c82a 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1299,9 +1299,9 @@ static int st_pctl_probe_dt(struct platform_device *pdev,
 		return -ENOMEM;
 
 	info->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
-	if (!info->regmap) {
+	if (IS_ERR(info->regmap)) {
 		dev_err(info->dev, "No syscfg phandle specified\n");
-		return -ENOMEM;
+		return PTR_ERR(info->regmap);
 	}
 	info->data = of_match_node(st_pctl_of_match, np)->data;
 
-- 
1.8.1.2



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