change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/kernel/irq/irqdesc.c
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@@ -31,7 +31,7 @@
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 	cpulist_parse(str, irq_default_affinity);
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 	/*
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 	 * Set at least the boot cpu. We don't want to end up with
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-	 * bugreports caused by random comandline masks
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+	 * bugreports caused by random commandline masks
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 	 */
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 	cpumask_set_cpu(smp_processor_id(), irq_default_affinity);
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 	return 1;
..
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@@ -288,22 +288,25 @@
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 	if (irq_kobj_base) {
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 		/*
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 		 * Continue even in case of failure as this is nothing
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-		 * crucial.
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+		 * crucial and failures in the late irq_sysfs_init()
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+		 * cannot be rolled back.
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 		 */
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 		if (kobject_add(&desc->kobj, irq_kobj_base, "%d", irq))
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 			pr_warn("Failed to add kobject for irq %d\n", irq);
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+		else
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+			desc->istate |= IRQS_SYSFS;
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 	}
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 }
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 static void irq_sysfs_del(struct irq_desc *desc)
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 {
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 	/*
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-	 * If irq_sysfs_init() has not yet been invoked (early boot), then
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-	 * irq_kobj_base is NULL and the descriptor was never added.
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-	 * kobject_del() complains about a object with no parent, so make
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-	 * it conditional.
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+	 * Only invoke kobject_del() when kobject_add() was successfully
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+	 * invoked for the descriptor. This covers both early boot, where
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+	 * sysfs is not initialized yet, and the case of a failed
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+	 * kobject_add() invocation.
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 	 */
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-	if (irq_kobj_base)
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+	if (desc->istate & IRQS_SYSFS)
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 		kobject_del(&desc->kobj);
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 }
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