add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/hwmon/ibmpex.c
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@@ -1,22 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * A hwmon driver for the IBM PowerExecutive temperature/power sensors
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  * Copyright (C) 2007 IBM
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  *
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  * Author: Darrick J. Wong <darrick.wong@oracle.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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  */
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 #include <linux/ipmi.h>
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@@ -84,7 +71,7 @@
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 	struct ipmi_addr	address;
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 	struct completion	read_complete;
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-	ipmi_user_t		user;
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+	struct ipmi_user	*user;
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 	int			interface;
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 	struct kernel_ipmi_msg	tx_message;
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@@ -269,12 +256,12 @@
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 	return NULL;
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 }
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-static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
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+static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
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 			 char *buf)
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 {
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 	return sprintf(buf, "%s\n", DRVNAME);
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 }
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-static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
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+static SENSOR_DEVICE_ATTR_RO(name, name, 0);
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 static ssize_t ibmpex_show_sensor(struct device *dev,
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 				  struct device_attribute *devattr,
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@@ -289,10 +276,9 @@
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 		       data->sensors[attr->index].values[attr->nr] * mult);
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 }
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-static ssize_t ibmpex_reset_high_low(struct device *dev,
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+static ssize_t ibmpex_high_low_store(struct device *dev,
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 				     struct device_attribute *devattr,
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-				     const char *buf,
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-				     size_t count)
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+				     const char *buf, size_t count)
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 {
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 	struct ibmpex_bmc_data *data = dev_get_drvdata(dev);
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@@ -301,8 +287,7 @@
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 	return count;
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 }
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-static SENSOR_DEVICE_ATTR(reset_high_low, S_IWUSR, NULL,
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-			  ibmpex_reset_high_low, 0);
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+static SENSOR_DEVICE_ATTR_WO(reset_high_low, ibmpex_high_low, 0);
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 static int is_power_sensor(const char *sensor_id, int len)
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 {
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@@ -358,7 +343,7 @@
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 	sysfs_attr_init(&data->sensors[sensor].attr[func].dev_attr.attr);
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 	data->sensors[sensor].attr[func].dev_attr.attr.name = n;
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-	data->sensors[sensor].attr[func].dev_attr.attr.mode = S_IRUGO;
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+	data->sensors[sensor].attr[func].dev_attr.attr.mode = 0444;
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 	data->sensors[sensor].attr[func].dev_attr.show = ibmpex_show_sensor;
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 	data->sensors[sensor].attr[func].index = sensor;
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 	data->sensors[sensor].attr[func].nr = func;
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@@ -517,6 +502,7 @@
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 	return;
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 out_register:
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+	list_del(&data->list);
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 	hwmon_device_unregister(data->hwmon_dev);
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 out_user:
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 	ipmi_destroy_user(data->user);