change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/lib/cpu_rmap.c
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@@ -1,10 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * cpu_rmap.c: CPU affinity reverse-map support
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  * Copyright 2011 Solarflare Communications Inc.
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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 of the GNU General Public License version 2 as published
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- * by the Free Software Foundation, incorporated herein by reference.
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  */
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 #include <linux/cpu_rmap.h>
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@@ -235,7 +232,8 @@
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 	for (index = 0; index < rmap->used; index++) {
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 		glue = rmap->obj[index];
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-		irq_set_affinity_notifier(glue->notify.irq, NULL);
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+		if (glue)
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+			irq_set_affinity_notifier(glue->notify.irq, NULL);
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 	}
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 	cpu_rmap_put(rmap);
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@@ -258,7 +256,7 @@
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 	rc = cpu_rmap_update(glue->rmap, glue->index, mask);
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 	if (rc)
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-		pr_warning("irq_cpu_rmap_notify: update failed: %d\n", rc);
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+		pr_warn("irq_cpu_rmap_notify: update failed: %d\n", rc);
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 }
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 /**
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@@ -270,6 +268,7 @@
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 	struct irq_glue *glue =
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 		container_of(ref, struct irq_glue, notify.kref);
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+	glue->rmap->obj[glue->index] = NULL;
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 	cpu_rmap_put(glue->rmap);
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 	kfree(glue);
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 }
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@@ -300,6 +299,7 @@
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 	rc = irq_set_affinity_notifier(irq, &glue->notify);
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 	if (rc) {
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 		cpu_rmap_put(glue->rmap);
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+		rmap->obj[glue->index] = NULL;
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 		kfree(glue);
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 	}
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 	return rc;