From: Tiezhu Yang <yangtiezhu@loongson.cn>
To: Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <maz@kernel.org>
Cc: linux-kernel@vger.kernel.org, Jiaxun Yang <jiaxun.yang@flygoat.com>
Subject: [PATCH v3 7/8] irqchip/loongson-liointc: Fix potential dead lock
Date: Tue, 7 Jul 2020 10:12:51 +0800 [thread overview]
Message-ID: <1594087972-21715-8-git-send-email-yangtiezhu@loongson.cn> (raw)
In-Reply-To: <1594087972-21715-1-git-send-email-yangtiezhu@loongson.cn>
In the function liointc_set_type(), we need to call the function
irq_gc_unlock_irqrestore() before returning.
Fixes: dbb152267908 ("irqchip: Add driver for Loongson I/O Local Interrupt Controller")
Reported-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
drivers/irqchip/irq-loongson-liointc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c
index 63b6147..6ef86a3 100644
--- a/drivers/irqchip/irq-loongson-liointc.c
+++ b/drivers/irqchip/irq-loongson-liointc.c
@@ -114,6 +114,7 @@ static int liointc_set_type(struct irq_data *data, unsigned int type)
liointc_set_bit(gc, LIOINTC_REG_INTC_POL, mask, false);
break;
default:
+ irq_gc_unlock_irqrestore(gc, flags);
return -EINVAL;
}
irq_gc_unlock_irqrestore(gc, flags);
--
2.1.0
next prev parent reply other threads:[~2020-07-07 2:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 2:12 [PATCH v3 0/8] irqchip: Fix some issues and do some code cleanups about Loongson Tiezhu Yang
2020-07-07 2:12 ` [PATCH v3 1/8] irqchip/loongson-htpic: Remove redundant kfree operation Tiezhu Yang
2020-07-07 2:12 ` [PATCH v3 2/8] irqchip/loongson-htpic: Remove unneeded select of I8259 Tiezhu Yang
2020-07-07 2:12 ` [PATCH v3 3/8] irqchip/loongson-htvec: Fix potential resource leak Tiezhu Yang
2020-07-07 2:12 ` [PATCH v3 4/8] irqchip/loongson-htvec: Check return value of irq_domain_translate_onecell() Tiezhu Yang
2020-07-07 2:12 ` [PATCH v3 5/8] irqchip/loongson-pch-pic: Check return value of irq_domain_translate_twocell() Tiezhu Yang
2020-07-07 2:12 ` [PATCH v3 6/8] irqchip/loongson-pch-msi: Remove unneeded variable Tiezhu Yang
2020-07-07 2:12 ` Tiezhu Yang [this message]
2020-07-07 2:12 ` [PATCH v3 8/8] dt-bindings: interrupt-controller: Fix typos in loongson,liointc.yaml Tiezhu Yang
2020-07-13 21:41 ` Rob Herring
2020-07-14 1:39 ` Tiezhu Yang
2020-07-17 12:48 ` [PATCH v3 0/8] irqchip: Fix some issues and do some code cleanups about Loongson Marc Zyngier
2020-07-17 12:48 ` Marc Zyngier
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