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Message-Id: <1592903198-5505-4-git-send-email-yangtiezhu@loongson.cn>
Date: Tue, 23 Jun 2020 17:06:34 +0800
From: Tiezhu Yang <yangtiezhu@...ngson.cn>
To: Thomas Gleixner <tglx@...utronix.de>,
Jason Cooper <jason@...edaemon.net>,
Marc Zyngier <maz@...nel.org>, Rob Herring <robh+dt@...nel.org>
Cc: Huacai Chen <chenhc@...ote.com>,
Jiaxun Yang <jiaxun.yang@...goat.com>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-mips@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>
Subject: [PATCH 3/7 RESEND] 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.
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
drivers/irqchip/irq-loongson-htvec.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-loongson-htvec.c b/drivers/irqchip/irq-loongson-htvec.c
index b36d403..720cf96 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,
--
2.1.0
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