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authorXuelin Shi <xuelin.shi@freescale.com>2014-07-01 12:32:38 +0400
committerDan Williams <dan.j.williams@intel.com>2014-08-21 21:20:52 +0400
commit87cea76384257e6ac3fa4791b6a6b9d0335f7457 (patch)
tree0c7d5c7d5ae3989303533cb9f20a8c711425b2d4
parentfbeec99ad5c03060ba71c470ac373e24e23a80e0 (diff)
downloadlinux-87cea76384257e6ac3fa4791b6a6b9d0335f7457.tar.xz
dmaengine: fix xor sources continuation
the partial xor result must be kept until the next tx is generated. Cc: <stable@vger.kernel.org> Signed-off-by: Xuelin Shi <xuelin.shi@freescale.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
-rw-r--r--crypto/async_tx/async_xor.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 3c562f5a60bb..e1bce26cd4f9 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -78,8 +78,6 @@ do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap,
tx = dma->device_prep_dma_xor(chan, dma_dest, src_list,
xor_src_cnt, unmap->len,
dma_flags);
- src_list[0] = tmp;
-
if (unlikely(!tx))
async_tx_quiesce(&submit->depend_tx);
@@ -92,6 +90,7 @@ do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap,
xor_src_cnt, unmap->len,
dma_flags);
}
+ src_list[0] = tmp;
dma_set_unmap(tx, unmap);
async_tx_submit(chan, tx, submit);