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    Subject[PATCH AUTOSEL for 4.15 34/78] mmc: block: fix logical error to avoid memory leak
    Date
    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 ccfa98af1dd3..b737a9540331 100644
    --- a/drivers/mmc/core/block.c
    +++ b/drivers/mmc/core/block.c
    @@ -2623,6 +2623,7 @@ static int mmc_ext_csd_open(struct inode *inode, struct file *filp)

    if (n != EXT_CSD_STR_LEN) {
    err = -EINVAL;
    + kfree(ext_csd);
    goto out_free;
    }

    --
    2.14.1
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