From: Amitoj Kaur Chawla <amitoj1606@gmail.com>
To: sakari.ailus@iki.fi, mchehab@osg.samsung.com,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: julia.lawall@lip6.fr
Subject: [PATCH] i2c: Modify error handling
Date: Sun, 31 Jul 2016 09:28:00 +0530 [thread overview]
Message-ID: <20160731035800.GA4576@amitoj-Inspiron-3542> (raw)
devm_gpiod_get returns an ERR_PTR on error so a null check is
incorrect and an IS_ERR check is required.
The Coccinelle semantic patch used to make this change is as follows:
@@
expression e;
statement S;
@@
e = devm_gpiod_get(...);
if(
- !e
+ IS_ERR(e)
)
{
...
- return ...;
+ return PTR_ERR(e);
}
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
---
drivers/media/i2c/adp1653.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/adp1653.c b/drivers/media/i2c/adp1653.c
index 7e9cbf7..54b355e 100644
--- a/drivers/media/i2c/adp1653.c
+++ b/drivers/media/i2c/adp1653.c
@@ -466,9 +466,9 @@ static int adp1653_of_init(struct i2c_client *client,
of_node_put(child);
pd->enable_gpio = devm_gpiod_get(&client->dev, "enable", GPIOD_OUT_LOW);
- if (!pd->enable_gpio) {
+ if (IS_ERR(pd->enable_gpio)) {
dev_err(&client->dev, "Error getting GPIO\n");
- return -EINVAL;
+ return PTR_ERR(pd->enable_gpio);
}
return 0;
--
1.9.1
next reply other threads:[~2016-07-31 3:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-31 3:58 Amitoj Kaur Chawla [this message]
2016-07-31 11:09 ` [PATCH] i2c: Modify error handling Sakari Ailus
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=20160731035800.GA4576@amitoj-Inspiron-3542 \
--to=amitoj1606@gmail.com \
--cc=julia.lawall@lip6.fr \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@osg.samsung.com \
--cc=sakari.ailus@iki.fi \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.