linux-kernel - [PATCH v5 12/14] irqchip/riscv-intc: Fix potential resource leak

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Message-Id: <1593998365-25910-13-git-send-email-yangtiezhu@loongson.cn>
Date:   Mon,  6 Jul 2020 09:19:23 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Markus Elfring <Markus.Elfring@....de>
Subject: [PATCH v5 12/14] irqchip/riscv-intc: Fix potential resource leak

In the function riscv_intc_init(), system resource "intc_domain"
was not released in an error case. Thus add a call of the function
"irq_domain_remove" in the if branch.

Fixes: 6b7ce8927b5a ("irqchip: RISC-V per-HART local interrupt controller driver")
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
Reviewed-by: Anup Patel <anup@...infault.org>
---
 drivers/irqchip/irq-riscv-intc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-riscv-intc.c b/drivers/irqchip/irq-riscv-intc.c
index a6f97fa..8d6286c 100644
--- a/drivers/irqchip/irq-riscv-intc.c
+++ b/drivers/irqchip/irq-riscv-intc.c
@@ -122,6 +122,7 @@ static int __init riscv_intc_init(struct device_node *node,
 	rc = set_handle_irq(&riscv_intc_irq);
 	if (rc) {
 		pr_err("failed to set irq handler\n");
+		irq_domain_remove(intc_domain);
 		return rc;
 	}
 
-- 
2.1.0