Unverified Commit 7c7ad035 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!5774 irqdomain: Fix driver re-inserting failures when IRQs not being freed 

Merge Pull Request from: @ci-robot 
 
PR sync from: Jie Zhan <zhanjie9@hisilicon.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/WOVU4SFUPYSQKSPPH3AW7OG722JXQOPH/ 
 
https://gitee.com/openeuler/kernel/issues/I9ERMB 
 
Link:https://gitee.com/openeuler/kernel/pulls/5774

 

Reviewed-by: default avatarZhang Jianhua <chris.zjh@huawei.com>
Signed-off-by: default avatarXie XiuQi <xiexiuqi@huawei.com>
parents 8f7c77eb d5dc3ac1

kernel/irq/irqdomain.c

+13 −2
Original line number Diff line number Diff line
@@ -1443,13 +1443,24 @@ static void irq_domain_free_irqs_hierarchy(struct irq_domain *domain, 
					   unsigned int nr_irqs)

{

	unsigned int i;

	int n;



	if (!domain->ops->free)

		return;



	for (i = 0; i < nr_irqs; i++) {

		if (irq_domain_get_irq_data(domain, irq_base + i))

			domain->ops->free(domain, irq_base + i, 1);

		/* Find the largest possible span of IRQs to free in one go */

		for (n = 0;

			((i + n) < nr_irqs) &&

			 (irq_domain_get_irq_data(domain, irq_base + i + n));

			n++)

			;



		if (!n)

			continue;



		domain->ops->free(domain, irq_base + i, n);

		i += n;

	}

}