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From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "stable@vger.kernel.org" <stable@vger.kernel.org>
CC:     "Liu, Changcheng" <changcheng.liu@intel.com>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL for 4.14 29/67] mmc: block: fix logical error to avoid
 memory leak
Thread-Topic: [PATCH AUTOSEL for 4.14 29/67] mmc: block: fix logical error to
 avoid memory leak
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Date:   Thu, 8 Mar 2018 04:57:44 +0000
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From: "Liu, Changcheng" <changcheng.liu@intel.com>

[ Upstream commit 0be55579a127916ebe39db2a74d906a2dfceed42 ]

If the MMC_DRV_OP_GET_EXT_CSD request completes successfully, then
ext_csd must be freed, but in one case it was not. Fix that.

Signed-off-by: Liu Changcheng <changcheng.liu@intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/mmc/core/block.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index ccb516f18d72..9c6f2ce3b710 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -2387,6 +2387,7 @@ static int mmc_ext_csd_open(struct inode *inode, stru=
ct file *filp)
=20
 	if (n !=3D EXT_CSD_STR_LEN) {
 		err =3D -EINVAL;
+		kfree(ext_csd);
 		goto out_free;
 	}
=20
--=20
2.14.1