From: Tiezhu Yang <yangtiezhu@loongson.cn>
To: Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <maz@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: Guo Ren <guoren@kernel.org>, Baruch Siach <baruch@tkos.co.il>,
Huacai Chen <chenhc@lemote.com>,
Jiaxun Yang <jiaxun.yang@flygoat.com>,
Tony Lindgren <tony@atomide.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>, Kukjin Kim <kgene@kernel.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
Michal Simek <michal.simek@xilinx.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-csky@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mips@vger.kernel.org, linux-omap@vger.kernel.org,
linux-riscv@lists.infradead.org,
linux-samsung-soc@vger.kernel.org,
Xuefeng Li <lixuefeng@loongson.cn>
Subject: [PATCH 4/7] irqchip/loongson-pch-pic: Check return value of irq_domain_translate_twocell()
Date: Tue, 23 Jun 2020 16:51:13 +0800 [thread overview]
Message-ID: <1592902276-3969-5-git-send-email-yangtiezhu@loongson.cn> (raw)
In-Reply-To: <1592902276-3969-1-git-send-email-yangtiezhu@loongson.cn>
Check the return value of irq_domain_translate_twocell() due to
it may returns -EINVAL if failed and use variable fwspec for it,
and then use a new variable parent_fwspec which is proper for
irq_domain_alloc_irqs_parent().
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
drivers/irqchip/irq-loongson-pch-pic.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/irqchip/irq-loongson-pch-pic.c b/drivers/irqchip/irq-loongson-pch-pic.c
index 2a05b93..016f32c 100644
--- a/drivers/irqchip/irq-loongson-pch-pic.c
+++ b/drivers/irqchip/irq-loongson-pch-pic.c
@@ -135,16 +135,19 @@ static int pch_pic_alloc(struct irq_domain *domain, unsigned int virq,
int err;
unsigned int type;
unsigned long hwirq;
- struct irq_fwspec fwspec;
+ struct irq_fwspec *fwspec = arg;
+ struct irq_fwspec parent_fwspec;
struct pch_pic *priv = domain->host_data;
- irq_domain_translate_twocell(domain, arg, &hwirq, &type);
+ err = irq_domain_translate_twocell(domain, fwspec, &hwirq, &type);
+ if (err)
+ return err;
- fwspec.fwnode = domain->parent->fwnode;
- fwspec.param_count = 1;
- fwspec.param[0] = hwirq + priv->ht_vec_base;
+ parent_fwspec.fwnode = domain->parent->fwnode;
+ parent_fwspec.param_count = 1;
+ parent_fwspec.param[0] = hwirq + priv->ht_vec_base;
- err = irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec);
+ err = irq_domain_alloc_irqs_parent(domain, virq, 1, &parent_fwspec);
if (err)
return err;
--
2.1.0
prev parent reply other threads:[~2020-06-23 8:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 8:51 [PATCH 0/7] Fix potential resource leaks and do some code cleanups about irqchip Tiezhu Yang
2020-06-23 8:51 ` [PATCH 1/7] irqchip: Fix potential resource leaks Tiezhu Yang
2020-06-24 9:15 ` Krzysztof Kozlowski
2020-06-24 9:24 ` Tiezhu Yang
2020-06-23 8:51 ` [PATCH 2/7] irqchip/loongson-htpic: Remove redundant kfree operation Tiezhu Yang
2020-06-23 8:51 ` [PATCH 3/7] irqchip/loongson-htvec: Check return value of irq_domain_translate_onecell() Tiezhu Yang
2020-06-23 8:51 ` Tiezhu Yang [this message]
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