linux-kernel - [PATCH] iio: bma180: Convert to use sysfs_emit

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Date:   Wed, 7 Dec 2022 10:03:19 +0800 (CST)
From:   <ye.xingchen@....com.cn>
To:     <andriy.shevchenko@...ux.intel.com>, <jic23@...nel.org>
Cc:     <lars@...afoo.de>, <u.kleine-koenig@...gutronix.de>,
        <petrm@...dia.com>, <olteanv@...il.com>,
        <ddrokosov@...rdevices.ru>, <linux-iio@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] iio: bma180: 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/accel/bma180.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index eb697eeb4301..9e3e5dfdded7 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -488,8 +488,7 @@ static ssize_t bma180_show_avail(char *buf, const int *vals, unsigned int n,
 	for (i = 0; i < n; i++) {
 		if (!vals[i])
 			continue;
-		len += scnprintf(buf + len, PAGE_SIZE - len,
-			micros ? "0.%06d " : "%d ", vals[i]);
+		len += sysfs_emit_at(buf, len, micros ? "0.%06d " : "%d ", vals[i]);
 	}
 	buf[len - 1] = '\n';

-- 
2.25.1