disable cpu isolcpus

hc

2023-12-09 958e46acc8e900e8569dd467c1af9b8d2d019394

 kernel/arch/powerpc/platforms/powernv/opal-elog.c
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@@ -1,12 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Error log support on PowerNV.
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  *
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  * Copyright 2013,2014 IBM Corp.
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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 the GNU General Public License
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- * as published by the Free Software Foundation; either version
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- * 2 of the License, or (at your option) any later version.
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  */
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 #include <linux/kernel.h>
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 #include <linux/init.h>
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@@ -76,9 +72,14 @@
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 			      const char *buf,
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 			      size_t count)
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 {
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-	opal_send_ack_elog(elog_obj->id);
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-	sysfs_remove_file_self(&elog_obj->kobj, &attr->attr);
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-	kobject_put(&elog_obj->kobj);
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+	/*
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+	 * Try to self remove this attribute. If we are successful,
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+	 * delete the kobject itself.
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+	 */
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+	if (sysfs_remove_file_self(&elog_obj->kobj, &attr->attr)) {
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+		opal_send_ack_elog(elog_obj->id);
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+		kobject_put(&elog_obj->kobj);
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+	}
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 	return count;
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 }
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