linux-kernel - [PATCH linux-next] Input: synaptics-rmi4

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Message-Id: <20220927070936.258300-1-zhang.songyi@zte.com.cn>
Date:   Tue, 27 Sep 2022 07:09:36 +0000
From:   zhangsongyi.cgel@...il.com
To:     dmitry.torokhov@...il.com
Cc:     zhang.songyi@....com.cn, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org, Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] Input: synaptics-rmi4 - Convert to use sysfs_emit() APIs

From: zhang songyi <zhang.songyi@....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.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: zhang songyi <zhang.songyi@....com.cn>
---
 drivers/input/rmi4/rmi_f34.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/input/rmi4/rmi_f34.c b/drivers/input/rmi4/rmi_f34.c
index e5dca9868f87..e6e7dde76c5b 100644
--- a/drivers/input/rmi4/rmi_f34.c
+++ b/drivers/input/rmi4/rmi_f34.c
@@ -321,11 +321,11 @@ static ssize_t rmi_driver_bootloader_id_show(struct device *dev,
 		f34 = dev_get_drvdata(&fn->dev);
 
 		if (f34->bl_version == 5)
-			return scnprintf(buf, PAGE_SIZE, "%c%c\n",
+			return sysfs_emit(buf, "%c%c\n",
 					 f34->bootloader_id[0],
 					 f34->bootloader_id[1]);
 		else
-			return scnprintf(buf, PAGE_SIZE, "V%d.%d\n",
+			return sysfs_emit(buf, "V%d.%d\n",
 					 f34->bootloader_id[1],
 					 f34->bootloader_id[0]);
 	}
@@ -346,7 +346,7 @@ static ssize_t rmi_driver_configuration_id_show(struct device *dev,
 	if (fn) {
 		f34 = dev_get_drvdata(&fn->dev);
 
-		return scnprintf(buf, PAGE_SIZE, "%s\n", f34->configuration_id);
+		return sysfs_emit(buf, "%s\n", f34->configuration_id);
 	}
 
 	return 0;
@@ -499,7 +499,7 @@ static ssize_t rmi_driver_update_fw_status_show(struct device *dev,
 	if (data->f34_container)
 		update_status = rmi_f34_status(data->f34_container);
 
-	return scnprintf(buf, PAGE_SIZE, "%d\n", update_status);
+	return sysfs_emit(buf, "%d\n", update_status);
 }
 
 static DEVICE_ATTR(update_fw_status, 0444,
-- 
2.25.1