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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Ding Xiang <dingxiang@cmss.chinamobile.com>,
        Atsushi Nemoto <anemo@mba.ocn.ne.jp>,
        Paul Burton <paul.burton@mips.com>, ralf@linux-mips.org,
        jhogan@kernel.org, linux-mips@linux-mips.org,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 073/239] mips: txx9: fix iounmap related issue
Date:   Tue, 19 Nov 2019 06:17:53 +0100
Message-Id: <20191119051313.532172161@linuxfoundation.org>
In-Reply-To: <20191119051255.850204959@linuxfoundation.org>
References: <20191119051255.850204959@linuxfoundation.org>
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From: Ding Xiang <dingxiang@cmss.chinamobile.com>

[ Upstream commit c6e1241a82e6e74d1ae5cc34581dab2ffd6022d0 ]

if device_register return error, iounmap should be called, also iounmap
need to call before put_device.

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Reviewed-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20476/
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/txx9/generic/setup.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 1791a44ee570a..20aaf77166e85 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -959,12 +959,11 @@ void __init txx9_sramc_init(struct resource *r)
 		goto exit_put;
 	err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr);
 	if (err) {
-		device_unregister(&dev->dev);
 		iounmap(dev->base);
-		kfree(dev);
+		device_unregister(&dev->dev);
 	}
 	return;
 exit_put:
+	iounmap(dev->base);
 	put_device(&dev->dev);
-	return;
 }
-- 
2.20.1