From: Pan Bian <bianpan2016@163.com>
To: Alessandro Zummo <a.zummo@towertech.it>,
Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: rtc-linux@googlegroups.com, linux-kernel@vger.kernel.org,
Pan Bian <bianpan2016@163.com>
Subject: [PATCH 1/1] rtc: snvs: fix an incorrect check of return value
Date: Sun, 23 Apr 2017 13:43:24 +0800 [thread overview]
Message-ID: <1492926204-9535-1-git-send-email-bianpan2016@163.com> (raw)
Function devm_regmap_init_mmio() returns an ERR_PTR on error. However,
in function snvs_rtc_probe() its return value is checked against NULL.
This patch fixes it by checking the return value with IS_ERR().
Signed-off-by: Pan Bian <bianpan2016@163.com>
---
drivers/rtc/rtc-snvs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
index d51b07d..d8ef9e0 100644
--- a/drivers/rtc/rtc-snvs.c
+++ b/drivers/rtc/rtc-snvs.c
@@ -258,7 +258,7 @@ static int snvs_rtc_probe(struct platform_device *pdev)
of_property_read_u32(pdev->dev.of_node, "offset", &data->offset);
}
- if (!data->regmap) {
+ if (IS_ERR(data->regmap)) {
dev_err(&pdev->dev, "Can't find snvs syscon\n");
return -ENODEV;
}
--
1.9.1
next reply other threads:[~2017-04-23 5:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-23 5:43 Pan Bian [this message]
2017-05-04 22:58 ` Alexandre Belloni
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1492926204-9535-1-git-send-email-bianpan2016@163.com \
--to=bianpan2016@163.com \
--cc=a.zummo@towertech.it \
--cc=alexandre.belloni@free-electrons.com \
--cc=linux-kernel@vger.kernel.org \
--cc=rtc-linux@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®