write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/hid/hid-sensor-custom.c
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@@ -1,15 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * hid-sensor-custom.c
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  * Copyright (c) 2015, Intel Corporation.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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  */
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 #include <linux/kernel.h>
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@@ -67,7 +59,7 @@
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 	u32 raw_len;
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 } __packed;
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-static struct attribute hid_custom_attrs[] = {
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+static struct attribute hid_custom_attrs[HID_CUSTOM_TOTAL_ATTRS] = {
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 	{.name = "name", .mode = S_IRUGO},
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 	{.name = "units", .mode = S_IRUGO},
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 	{.name = "unit-expo", .mode = S_IRUGO},
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@@ -157,8 +149,7 @@
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 static ssize_t enable_sensor_show(struct device *dev,
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 				  struct device_attribute *attr, char *buf)
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 {
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-	struct platform_device *pdev = to_platform_device(dev);
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-	struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
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+	struct hid_sensor_custom *sensor_inst = dev_get_drvdata(dev);
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 	return sprintf(buf, "%d\n", sensor_inst->enable);
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 }
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@@ -237,8 +228,7 @@
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 				   struct device_attribute *attr,
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 				   const char *buf, size_t count)
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 {
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-	struct platform_device *pdev = to_platform_device(dev);
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-	struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
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+	struct hid_sensor_custom *sensor_inst = dev_get_drvdata(dev);
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 	int value;
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 	int ret = -EINVAL;
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@@ -283,8 +273,7 @@
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 static ssize_t show_value(struct device *dev, struct device_attribute *attr,
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 			  char *buf)
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 {
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-	struct platform_device *pdev = to_platform_device(dev);
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-	struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
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+	struct hid_sensor_custom *sensor_inst = dev_get_drvdata(dev);
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 	struct hid_sensor_hub_attribute_info *attribute;
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 	int index, usage, field_index;
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 	char name[HID_CUSTOM_NAME_LENGTH];
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@@ -324,7 +313,7 @@
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 			while (i < ret) {
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 				if (i + attribute->size > ret) {
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-					len += snprintf(&buf[len],
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+					len += scnprintf(&buf[len],
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 							PAGE_SIZE - len,
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 							"%d ", values[i]);
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 					break;
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@@ -347,10 +336,10 @@
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 					++i;
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 					break;
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 				}
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-				len += snprintf(&buf[len], PAGE_SIZE - len,
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+				len += scnprintf(&buf[len], PAGE_SIZE - len,
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 						"%lld ", value);
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 			}
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-			len += snprintf(&buf[len], PAGE_SIZE - len, "\n");
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+			len += scnprintf(&buf[len], PAGE_SIZE - len, "\n");
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 			return len;
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 		} else if (input)
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@@ -392,8 +381,7 @@
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 static ssize_t store_value(struct device *dev, struct device_attribute *attr,
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 			   const char *buf, size_t count)
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 {
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-	struct platform_device *pdev = to_platform_device(dev);
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-	struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
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+	struct hid_sensor_custom *sensor_inst = dev_get_drvdata(dev);
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 	int index, field_index, usage;
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 	char name[HID_CUSTOM_NAME_LENGTH];
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 	int value;
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@@ -699,7 +687,7 @@
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 	if (test_and_set_bit(0, &sensor_inst->misc_opened))
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 		return -EBUSY;
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-	return nonseekable_open(inode, file);
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+	return stream_open(inode, file);
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 }
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 static __poll_t hid_sensor_custom_poll(struct file *file,