change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/watchdog/ie6xx_wdt.c
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@@ -1,24 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *      Intel Atom E6xx Watchdog driver
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  *
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  *      Copyright (C) 2011 Alexander Stein
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  *                <alexander.stein@systec-electronic.com>
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- *
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- *      This program is free software; you can redistribute it and/or
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- *      modify it under the terms of version 2 of the GNU General
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- *      Public License as published by the Free Software Foundation.
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- *
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- *      This program is distributed in the hope that it will be
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- *      useful, but WITHOUT ANY WARRANTY; without even the implied
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- *      warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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- *      PURPOSE.  See the GNU General Public License for more details.
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- *      You should have received a copy of the GNU General Public
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- *      License along with this program; if not, write to the Free
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- *      Software Foundation, Inc., 59 Temple Place - Suite 330,
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- *      Boston, MA  02111-1307, USA.
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- *      The full GNU General Public License is included in this
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- *      distribution in the file called COPYING.
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- *
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  */
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 #include <linux/module.h>
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@@ -81,7 +66,7 @@
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 static struct {
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 	unsigned short sch_wdtba;
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-	struct spinlock unlock_sequence;
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+	spinlock_t unlock_sequence;
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 #ifdef CONFIG_DEBUG_FS
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 	struct dentry *debugfs;
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 #endif
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@@ -193,7 +178,7 @@
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 #ifdef CONFIG_DEBUG_FS
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-static int ie6xx_wdt_dbg_show(struct seq_file *s, void *unused)
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+static int ie6xx_wdt_show(struct seq_file *s, void *unused)
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 {
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 	seq_printf(s, "PV1   = 0x%08x\n",
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 		inl(ie6xx_wdt_data.sch_wdtba + PV1));
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@@ -212,23 +197,13 @@
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 	return 0;
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 }
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-static int ie6xx_wdt_dbg_open(struct inode *inode, struct file *file)
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-{
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-	return single_open(file, ie6xx_wdt_dbg_show, NULL);
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-}
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-
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-static const struct file_operations ie6xx_wdt_dbg_operations = {
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-	.open		= ie6xx_wdt_dbg_open,
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-	.read		= seq_read,
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-	.llseek		= seq_lseek,
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-	.release	= single_release,
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-};
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+DEFINE_SHOW_ATTRIBUTE(ie6xx_wdt);
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 static void ie6xx_wdt_debugfs_init(void)
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 {
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 	/* /sys/kernel/debug/ie6xx_wdt */
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 	ie6xx_wdt_data.debugfs = debugfs_create_file("ie6xx_wdt",
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-		S_IFREG | S_IRUGO, NULL, NULL, &ie6xx_wdt_dbg_operations);
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+		S_IFREG | S_IRUGO, NULL, NULL, &ie6xx_wdt_fops);
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 }
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 static void ie6xx_wdt_debugfs_exit(void)
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@@ -279,12 +254,8 @@
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 	ie6xx_wdt_debugfs_init();
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 	ret = watchdog_register_device(&ie6xx_wdt_dev);
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-	if (ret) {
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-		dev_err(&pdev->dev,
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-			"Watchdog timer: cannot register device (err =%d)\n",
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-									ret);
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+	if (ret)
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 		goto misc_register_error;
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-	}
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 	return 0;
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