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    Subject[PATCH 4.16 005/196] ubi: fastmap: Dont flush fastmap work on detach
    Date
    4.16-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Richard Weinberger <richard@nod.at>

    commit 29b7a6fa1ec07e8480b0d9caf635a4498a438bf4 upstream.

    At this point UBI volumes have already been free()'ed and fastmap can no
    longer access these data structures.

    Reported-by: Martin Townsend <mtownsend1973@gmail.com>
    Fixes: 74cdaf24004a ("UBI: Fastmap: Fix memory leaks while closing the WL sub-system")
    Cc: stable@vger.kernel.org
    Signed-off-by: Richard Weinberger <richard@nod.at>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/mtd/ubi/fastmap-wl.c | 1 -
    1 file changed, 1 deletion(-)

    --- a/drivers/mtd/ubi/fastmap-wl.c
    +++ b/drivers/mtd/ubi/fastmap-wl.c
    @@ -362,7 +362,6 @@ static void ubi_fastmap_close(struct ubi
    {
    int i;

    - flush_work(&ubi->fm_work);
    return_unused_pool_pebs(ubi, &ubi->fm_pool);
    return_unused_pool_pebs(ubi, &ubi->fm_wl_pool);


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