On 11/26/2013 2:06 PM, Chris Ball wrote:
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.
Great!
Thanks,
Ray
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
