[PATCH -next RESEND] pinctrl: st: fix return value check
Wei Yongjun
weiyj.lk at gmail.com
Fri Jun 28 21:30:40 EST 2013
From: Wei Yongjun <yongjun_wei at trendmicro.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 at trendmicro.com.cn>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla at st.com>
---
cc to Mark Brown
---
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++)
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