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| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2020-07-07 10:12:48 +0800 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-07-17 13:41:42 +0100 |
| commit | dbec37048d27cee36e103e113b5f9b1852bfe997 (patch) | |
| tree | bc8ebf13960bd547cf332cbc7da9fc276cfa98f9 /drivers/irqchip | |
| parent | 652d54e77a438cf38a5731d8f9983c81e72dc429 (diff) | |
| download | lwn-dbec37048d27cee36e103e113b5f9b1852bfe997.tar.gz lwn-dbec37048d27cee36e103e113b5f9b1852bfe997.zip | |
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: 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
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-loongson-htvec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-loongson-htvec.c b/drivers/irqchip/irq-loongson-htvec.c index b36d40338323..720cf96ae90e 100644 --- a/drivers/irqchip/irq-loongson-htvec.c +++ b/drivers/irqchip/irq-loongson-htvec.c @@ -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, |