linux-kernel - [PATCH -next] pinctrl: st: fix return value check

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAPgLHd8-jbXfb95x1Bp7GsMuEJ3mOudUcknRqbxNpNmcdQvg3w@mail.gmail.com>
Date:	Thu, 27 Jun 2013 00:30:10 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	linus.walleij@...aro.org, grant.likely@...aro.org,
	rob.herring@...xeda.com
Cc:	yongjun_wei@...ndmicro.com.cn, linux-kernel@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org
Subject: [PATCH -next] pinctrl: st: fix return value check

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

In case of error, the function pinctrl_register() returns
NULL not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.
The function syscon_regmap_lookup_by_phandle() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 drivers/pinctrl/pinctrl-st.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 7effedf..de8c626 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;
 
@@ -1376,9 +1376,9 @@ static int st_pctl_probe(struct platform_device *pdev)
 	pctl_desc->name		= dev_name(&pdev->dev);
 
 	info->pctl = pinctrl_register(pctl_desc, &pdev->dev, info);
-	if (IS_ERR(info->pctl)) {
+	if (!info->pctl) {
 		dev_err(&pdev->dev, "Failed pinctrl registration\n");
-		return PTR_ERR(info->pctl);
+		return -EINVAL;
 	}
 
 	for (i = 0; i < info->nbanks; i++)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/