From: Qing Wang <wangqing@vivo.com>
To: Guenter Roeck <linux@roeck-us.net>,
Jean Delvare <jdelvare@suse.com>,
linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Qing Wang <wangqing@vivo.com>
Subject: [PATCH] hwmon: replace snprintf in show functions with sysfs_emit
Date: Thu, 14 Oct 2021 23:48:45 -0700 [thread overview]
Message-ID: <1634280525-4532-1-git-send-email-wangqing@vivo.com> (raw)
show() must not use snprintf() when formatting the value to be
returned to user space.
Fix the following coccicheck warning:
drivers/hwmon/smm665.c:378: WARNING: use scnprintf or sprintf.
Use sysfs_emit instead of scnprintf or sprintf makes more sense.
Signed-off-by: Qing Wang <wangqing@vivo.com>
---
drivers/hwmon/smm665.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/smm665.c b/drivers/hwmon/smm665.c
index 62906d9..122031e 100644
--- a/drivers/hwmon/smm665.c
+++ b/drivers/hwmon/smm665.c
@@ -375,7 +375,7 @@ static ssize_t smm665_show_##what(struct device *dev, \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
const int val = smm665_get_##what(dev, attr->index); \
- return snprintf(buf, PAGE_SIZE, "%d\n", val); \
+ return sysfs_emit(buf, "%d\n", val); \
}
SMM665_SHOW(min);
--
2.7.4
next reply other threads:[~2021-10-15 6:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-15 6:48 Qing Wang [this message]
2021-10-15 22:00 ` [PATCH] hwmon: replace snprintf in show functions with sysfs_emit Guenter Roeck
-- strict thread matches above, loose matches on Subject: below --
2021-03-22 4:23 Guenter Roeck
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