linux-kernel - [PATCH] iio: magnetometer: bmc150_magn: Convert to use sysfs_emit

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Message-ID: <202212071549349412843@zte.com.cn>
Date:   Wed, 7 Dec 2022 15:49:34 +0800 (CST)
From:   <ye.xingchen@....com.cn>
To:     <andy.shevchenko@...il.com>
Cc:     <jic23@...nel.org>, <lars@...afoo.de>, <linmq006@...il.com>,
        <u.kleine-koenig@...gutronix.de>, <linux-iio@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] iio: magnetometer: bmc150_magn: Convert to use sysfs_emit_at() API

From: ye xingchen <ye.xingchen@....com.cn>

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

Signed-off-by: ye xingchen <ye.xingchen@....com.cn>
---
 drivers/iio/magnetometer/bmc150_magn.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
index 06d5a1ef1fbd..1398684a7f30 100644
--- a/drivers/iio/magnetometer/bmc150_magn.c
+++ b/drivers/iio/magnetometer/bmc150_magn.c
@@ -598,8 +598,7 @@ static ssize_t bmc150_magn_show_samp_freq_avail(struct device *dev,
 	for (i = 0; i < ARRAY_SIZE(bmc150_magn_samp_freq_table); i++) {
 		if (bmc150_magn_samp_freq_table[i].freq > data->max_odr)
 			break;
-		len += scnprintf(buf + len, PAGE_SIZE - len, "%d ",
-				 bmc150_magn_samp_freq_table[i].freq);
+		len += sysfs_emit_at(buf, len, "%d ", bmc150_magn_samp_freq_table[i].freq);
 	}
 	/* replace last space with a newline */
 	buf[len - 1] = '\n';
-- 
2.25.1