D38599.1794700938.diff
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D38599.1794700938.diff
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	diff --git a/sys/kern/subr_intr.c b/sys/kern/subr_intr.c
	--- a/sys/kern/subr_intr.c
	+++ b/sys/kern/subr_intr.c
	@@ -468,13 +468,10 @@

	mtx_assert(&isrc_table_lock, MA_OWNED);

	- if (isrc->isrc_irq >= intr_nirq)
	- return (EINVAL);
	- if (irq_sources[isrc->isrc_irq] != isrc)
	- return (EINVAL);
	-
	- irq_sources[isrc->isrc_irq] = NULL;
	- isrc->isrc_irq = INTR_IRQ_INVALID; /* just to be safe */
	+ if (isrc->isrc_irq < intr_nirq) {
	+ if (irq_sources[isrc->isrc_irq] == isrc)
	+ irq_sources[isrc->isrc_irq] = NULL;
	+ isrc->isrc_irq = INTR_IRQ_INVALID; /* mark removed */

	/*
	* If we are recovering from the state irq_sources table is full,
	@@ -482,8 +479,9 @@
	* will ensure maximum separation of allocation order from release
	* order.
	*/
	- if (irq_next_free >= intr_nirq)
	- irq_next_free = 0;
	+ if (irq_next_free >= intr_nirq)
	+ irq_next_free = 0;
	+ }

	return (0);
	}
	@@ -537,7 +535,11 @@
	isrc_release_counters(isrc);
	error = isrc_free_irq(isrc);
	mtx_unlock(&isrc_table_lock);
	- return (error);
	+
	+ if (error != 0)
	+ return (error);
	+
	+ return (intr_event_destroy(isrc->isrc_event));
	}

	#ifdef SMP