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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     "Souptick Joarder (HPE)" <jrdr.linux@gmail.com>,
        kernel test robot <lkp@intel.com>,
        Dan Carpenter <dan.carpenter@oracle.com>,
        Marc Zyngier <maz@kernel.org>, Sasha Levin <sashal@kernel.org>,
        tglx@linutronix.de
Subject: [PATCH AUTOSEL 5.17 26/43] irqchip/nvic: Release nvic_base upon failure
Date:   Mon, 28 Mar 2022 07:18:10 -0400
Message-Id: <20220328111828.1554086-26-sashal@kernel.org>
In-Reply-To: <20220328111828.1554086-1-sashal@kernel.org>
References: <20220328111828.1554086-1-sashal@kernel.org>
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From: "Souptick Joarder (HPE)" <jrdr.linux@gmail.com>

[ Upstream commit e414c25e3399b2b3d7337dc47abccab5c71b7c8f ]

smatch warning was reported as below ->

smatch warnings:
drivers/irqchip/irq-nvic.c:131 nvic_of_init()
warn: 'nvic_base' not released on lines: 97.

Release nvic_base upon failure.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Souptick Joarder (HPE) <jrdr.linux@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220218163303.33344-1-jrdr.linux@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-nvic.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c
index ba4759b3e269..94230306e0ee 100644
--- a/drivers/irqchip/irq-nvic.c
+++ b/drivers/irqchip/irq-nvic.c
@@ -107,6 +107,7 @@ static int __init nvic_of_init(struct device_node *node,
 
 	if (!nvic_irq_domain) {
 		pr_warn("Failed to allocate irq domain\n");
+		iounmap(nvic_base);
 		return -ENOMEM;
 	}
 
@@ -116,6 +117,7 @@ static int __init nvic_of_init(struct device_node *node,
 	if (ret) {
 		pr_warn("Failed to allocate irq chips\n");
 		irq_domain_remove(nvic_irq_domain);
+		iounmap(nvic_base);
 		return ret;
 	}
 
-- 
2.34.1