Re: [PATCH v2] mmc: fix host release issue after discard operation

[Chris Ball]

Hi Ray,

On Sat, Oct 26 2013, Ray Jui wrote:
> Under function mmc_blk_issue_rq, after an MMC discard operation,
> the MMC request data structure may be freed in memory. Later in
> the same function, the check of req->cmd_flags & MMC_REQ_SPECIAL_MASK
> is dangerous and invalid. It causes the MMC host not to be released
> when it should
>
> This patch fixes the issue by marking the special request down before
> the discard/flush operation
>
> Reported by: Harold (SoonYeal) Yang <haroldsy@xxxxxxxxxxxx>
> Signed-off-by: Ray Jui <rjui@xxxxxxxxxxxx>
> Reviewed-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>

Thanks, pushed to mmc-next for 3.14 and -stable.

- Chris.
-- 
Chris Ball   <cjb@xxxxxxxxxx>   <http://printf.net/>
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