linux-kernel - [PATCH AUTOSEL 5.4 019/130] mips: cm: add missing iounmap() on error in mips_cm

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Message-Id: <20201223021813.2791612-19-sashal@kernel.org>
Date:   Tue, 22 Dec 2020 21:16:22 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Qinglang Miao <miaoqinglang@...wei.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Sasha Levin <sashal@...nel.org>, linux-mips@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 019/130] mips: cm: add missing iounmap() on error in mips_cm_probe()

From: Qinglang Miao <miaoqinglang@...wei.com>

[ Upstream commit 2673ecf9586551c5bcee499c1cc1949f6f7cc9a1 ]

Add the missing iounmap() of iounmap(mips_gcr_base) before
return from mips_cm_probe() in the error handling case.

Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/mips/kernel/mips-cm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index a9eab83d9148d..f6a82ad010603 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -224,6 +224,7 @@ int mips_cm_probe(void)
 	if ((base_reg & CM_GCR_BASE_GCRBASE) != addr) {
 		pr_err("GCRs appear to have been moved (expected them at 0x%08lx)!\n",
 		       (unsigned long)addr);
+		iounmap(mips_gcr_base);
 		mips_gcr_base = NULL;
 		return -ENODEV;
 	}
-- 
2.27.0