linux-kernel - [PATCH] iio: ad7192: Convert to use sysfs_emit

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Date:   Wed, 7 Dec 2022 15:28:54 +0800 (CST)
From:   <ye.xingchen@....com.cn>
To:     <jic23@...nel.org>
Cc:     <alexandru.tachici@...log.com>,
        <andriy.shevchenko@...ux.intel.com>, <lars@...afoo.de>,
        <michael.hennerich@...log.com>, <linux-iio@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] iio: ad7192: 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/adc/ad7192.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c
index 55a6ab591016..0ba32dca634b 100644
--- a/drivers/iio/adc/ad7192.c
+++ b/drivers/iio/adc/ad7192.c
@@ -561,9 +561,9 @@ static ssize_t ad7192_show_filter_avail(struct device *dev,
 	ad7192_get_available_filter_freq(st, freq_avail);

 	for (i = 0; i < ARRAY_SIZE(freq_avail); i++)
-		len += scnprintf(buf + len, PAGE_SIZE - len,
-				 "%d.%d ", freq_avail[i] / 1000,
-				 freq_avail[i] % 1000);
+		len += sysfs_emit_at(buf, len, "%d.%d ",
+				     freq_avail[i] / 1000,
+				     freq_avail[i] % 1000);

 	buf[len - 1] = '\n';

-- 
2.25.1