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| author | Xuelin Shi <xuelin.shi@freescale.com> | 2014-05-22 01:02:37 +0400 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2014-05-22 01:02:37 +0400 |
| commit | c1f43dd9c20d85e66c4d77e284f64ac114abe3f8 (patch) | |
| tree | ee4ff99c2742b037071435d9dc0423eb3650da51 /include/linux/dmaengine.h | |
| parent | 5a9a55bf9157d3490b0c8c4c81d4708602c26e07 (diff) | |
| download | linux-c1f43dd9c20d85e66c4d77e284f64ac114abe3f8.tar.xz | |
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>
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 8300fb87b84a..72cb0ddb9678 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -429,6 +429,7 @@ typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param); typedef void (*dma_async_tx_callback)(void *dma_async_param); struct dmaengine_unmap_data { + u8 map_cnt; u8 to_cnt; u8 from_cnt; u8 bidi_cnt; |