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

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

Fixes: 818e915fbac5 ("irqchip: Add Loongson HyperTransport Vector support")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1594087972-21715-5-git-send-email-yangtiezhu@loongson.cn
This commit is contained in:
Tiezhu Yang 2020-07-07 10:12:48 +08:00 committed by Marc Zyngier
parent 652d54e77a
commit dbec37048d
1 changed files with 4 additions and 1 deletions
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5
drivers/irqchip/irq-loongson-htvec.c
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@ -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,