linux-kernel - [PATCH] HID: lenovo: convert sysfs snprintf to sysfs

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Message-Id: <20220428035020.250438-1-zhangxuezhi1@coolpad.com>
Date:   Thu, 28 Apr 2022 03:50:20 +0000
From:   Xuezhi Zhang <zhangxuezhi1@...lpad.com>
To:     jikos@...nel.org, benjamin.tissoires@...hat.com
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Xuezhi Zhang <zhangxuezhi1@...lpad.com>
Subject: [PATCH] HID: lenovo: convert sysfs snprintf to sysfs_emit

Fix the following coccicheck warnings:
drivers/hid/hid-lenovo.c:636:8-16:
WARNING: use scnprintf or sprintf
drivers/hid/hid-lenovo.c:403:8-16:
WARNING: use scnprintf or sprintf
drivers/hid/hid-lenovo.c:755:8-16:
WARNING: use scnprintf or sprintf
drivers/hid/hid-lenovo.c:606:8-16:
WARNING: use scnprintf or sprintf
drivers/hid/hid-lenovo.c:666:8-16:
WARNING: use scnprintf or sprintf
drivers/hid/hid-lenovo.c:696:8-16:
WARNING: use scnprintf or sprintf
drivers/hid/hid-lenovo.c:445:8-16:
WARNING: use scnprintf or sprintf
drivers/hid/hid-lenovo.c:726:8-16:
WARNING: use scnprintf or sprintf

Signed-off-by: Xuezhi Zhang <zhangxuezhi1@...lpad.com>
---
 drivers/hid/hid-lenovo.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c
index 93b1f935e526..69ae39bdbe70 100644
--- a/drivers/hid/hid-lenovo.c
+++ b/drivers/hid/hid-lenovo.c
@@ -400,7 +400,7 @@ static ssize_t attr_fn_lock_show(struct device *dev,
 	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata *data = hid_get_drvdata(hdev);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n", data->fn_lock);
+	return sysfs_emit(buf, "%u\n", data->fn_lock);
 }
 
 static ssize_t attr_fn_lock_store(struct device *dev,
@@ -442,8 +442,7 @@ static ssize_t attr_sensitivity_show_cptkbd(struct device *dev,
 	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n",
-		cptkbd_data->sensitivity);
+	return sysfs_emit(buf, "%u\n", cptkbd_data->sensitivity);
 }
 
 static ssize_t attr_sensitivity_store_cptkbd(struct device *dev,
@@ -603,7 +602,7 @@ static ssize_t attr_press_to_select_show_tpkbd(struct device *dev,
 	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select);
+	return sysfs_emit(buf, "%u\n", data_pointer->press_to_select);
 }
 
 static ssize_t attr_press_to_select_store_tpkbd(struct device *dev,
@@ -633,7 +632,7 @@ static ssize_t attr_dragging_show_tpkbd(struct device *dev,
 	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging);
+	return sysfs_emit(buf, "%u\n", data_pointer->dragging);
 }
 
 static ssize_t attr_dragging_store_tpkbd(struct device *dev,
@@ -663,7 +662,7 @@ static ssize_t attr_release_to_select_show_tpkbd(struct device *dev,
 	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select);
+	return sysfs_emit(buf, "%u\n", data_pointer->release_to_select);
 }
 
 static ssize_t attr_release_to_select_store_tpkbd(struct device *dev,
@@ -693,7 +692,7 @@ static ssize_t attr_select_right_show_tpkbd(struct device *dev,
 	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right);
+	return sysfs_emit(buf, "%u\n", data_pointer->select_right);
 }
 
 static ssize_t attr_select_right_store_tpkbd(struct device *dev,
@@ -723,8 +722,7 @@ static ssize_t attr_sensitivity_show_tpkbd(struct device *dev,
 	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n",
-		data_pointer->sensitivity);
+	return sysfs_emit(buf, "%u\n", data_pointer->sensitivity);
 }
 
 static ssize_t attr_sensitivity_store_tpkbd(struct device *dev,
@@ -752,8 +750,7 @@ static ssize_t attr_press_speed_show_tpkbd(struct device *dev,
 	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n",
-		data_pointer->press_speed);
+	return sysfs_emit(buf, "%u\n", data_pointer->press_speed);
 }
 
 static ssize_t attr_press_speed_store_tpkbd(struct device *dev,
-- 
2.25.1