linux-kernel - [PATCH] iio: adc: ad7192: Use sysfs_emit

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Message-ID: <20230620163135.93780-1-alisa.roman@analog.com>
Date:   Tue, 20 Jun 2023 19:31:35 +0300
From:   Alisa Roman <alisa.roman@...log.com>
To:     unlisted-recipients:; (no To-header on input)
CC:     Alisa Roman <alisa.roman@...log.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Alexandru Tachici <alexandru.tachici@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] iio: adc: ad7192: Use sysfs_emit_at

Replace scnprintf with sysfs_emit_at which is the preferred alternative.

Also make sure each fractional digit is in its place by padding with
zeros up to 3 digits: "...%03d...".

Signed-off-by: Alisa Roman <alisa.roman@...log.com>
---
 drivers/iio/adc/ad7192.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c
index e23d9a7dcc9e..c980bc871412 100644
--- a/drivers/iio/adc/ad7192.c
+++ b/drivers/iio/adc/ad7192.c
@@ -561,9 +561,8 @@ 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.%03d ", freq_avail[i] / 1000,
+				     freq_avail[i] % 1000);
 
 	buf[len - 1] = '\n';
 
-- 
2.34.1