linux-kernel - [PATCH] w1: core: use sysfs

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Message-ID: <20241220102337.295864-1-zhangheng@kylinos.cn>
Date: Fri, 20 Dec 2024 18:23:37 +0800
From: zhangheng <zhangheng@...inos.cn>
To: krzk@...nel.org
Cc: linux-kernel@...r.kernel.org,
	zhangheng <zhangheng@...inos.cn>
Subject: [PATCH] w1: core: use sysfs_emit() instead of sprintf()

Follow the advice in Documentation/filesystems/sysfs.rst:
show() should only use sysfs_emit() or sysfs_emit_at() when formatting
the value to be returned to user space.

Signed-off-by: zhangheng <zhangheng@...inos.cn>
---
change for v2
	- None
 drivers/w1/slaves/w1_ds28e17.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/w1/slaves/w1_ds28e17.c b/drivers/w1/slaves/w1_ds28e17.c
index 52261b54d842..5738cbce1a37 100644
--- a/drivers/w1/slaves/w1_ds28e17.c
+++ b/drivers/w1/slaves/w1_ds28e17.c
@@ -583,7 +583,7 @@ static ssize_t speed_show(struct device *dev, struct device_attribute *attr,
 		return result;
 
 	/* Return current speed value. */
-	return sprintf(buf, "%d\n", result);
+	return sysfs_emit(buf, "%d\n", result);
 }
 
 static ssize_t speed_store(struct device *dev, struct device_attribute *attr,
@@ -633,7 +633,7 @@ static ssize_t stretch_show(struct device *dev, struct device_attribute *attr,
 	struct w1_f19_data *data = sl->family_data;
 
 	/* Return current stretch value. */
-	return sprintf(buf, "%d\n", data->stretch);
+	return sysfs_emit(buf, "%d\n", data->stretch);
 }
 
 static ssize_t stretch_store(struct device *dev, struct device_attribute *attr,
-- 
2.45.2