tree ee4ff99c2742b037071435d9dc0423eb3650da51
parent 5a9a55bf9157d3490b0c8c4c81d4708602c26e07
author Xuelin Shi <xuelin.shi@freescale.com> 1400706157 -0700
committer Dan Williams <dan.j.williams@intel.com> 1400706157 -0700

dmaengine: fix dmaengine_unmap failure

The count which is used to get_unmap_data maybe not the same as the
count computed in dmaengine_unmap which causes to free data in a
wrong pool.

This patch fixes this issue by keeping the map count with unmap_data
structure and use this count to get the pool.

Cc: <stable@vger.kernel.org>
Signed-off-by: Xuelin Shi <xuelin.shi@freescale.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>