On 11/24/2014 10:20 AM, Richard Weinberger wrote:
> ...otherwise the deferred work might run after datastructures
> got freed and corrupt memory.
> 
> Signed-off-by: Richard Weinberger <[email protected]>
> ---
>  drivers/mtd/ubi/wl.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
> index 7f135df..cb2e571 100644
> --- a/drivers/mtd/ubi/wl.c
> +++ b/drivers/mtd/ubi/wl.c
> @@ -2041,6 +2041,9 @@ static void protection_queue_destroy(struct ubi_device 
> *ubi)
>  void ubi_wl_close(struct ubi_device *ubi)
>  {
>       dbg_wl("close the WL sub-system");
> +#ifdef CONFIG_MTD_UBI_FASTMAP
> +     flush_work(&ubi->fm_work);
> +#endif
>       shutdown_work(ubi);
>       protection_queue_destroy(ubi);
>       tree_destroy(&ubi->used);
> 

IMHO, it's best to avoid nasty ifdefs like this (there are lots of ways
of getting it cleaner). But I guess it's not a big deal.
-- 
Ezequiel Garcia, VanguardiaSur
www.vanguardiasur.com.ar
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