Commit dbec3704 authored by Tiezhu Yang's avatar Tiezhu Yang Committed by Marc Zyngier
Browse files

irqchip/loongson-htvec: Check return value of irq_domain_translate_onecell() 



Check the return value of irq_domain_translate_onecell() due to
it may returns -EINVAL if failed.

Fixes: 818e915f ("irqchip: Add Loongson HyperTransport Vector support")
Signed-off-by: default avatarTiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1594087972-21715-5-git-send-email-yangtiezhu@loongson.cn
parent 652d54e7

drivers/irqchip/irq-loongson-htvec.c

+4 −1
Original line number Diff line number Diff line
@@ -109,11 +109,14 @@ static struct irq_chip htvec_irq_chip = { 
static int htvec_domain_alloc(struct irq_domain *domain, unsigned int virq,

			      unsigned int nr_irqs, void *arg)

{

	int ret;

	unsigned long hwirq;

	unsigned int type, i;

	struct htvec *priv = domain->host_data;



	irq_domain_translate_onecell(domain, arg, &hwirq, &type);

	ret = irq_domain_translate_onecell(domain, arg, &hwirq, &type);

	if (ret)

		return ret;



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

		irq_domain_set_info(domain, virq + i, hwirq + i, &htvec_irq_chip,

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