diff mbox

dmaengine: fix xor sources continuation

Message ID 1404203558-18193-1-git-send-email-xuelin.shi@freescale.com (mailing list archive)
State Not Applicable
Delegated to: Dan Williams
Headers show

Commit Message

Xuelin Shi July 1, 2014, 8:32 a.m. UTC 
From: Xuelin Shi <xuelin.shi@freescale.com>

the partial xor result must be kept until the next
tx is generated.

Signed-off-by: Xuelin Shi <xuelin.shi@freescale.com>
---
 crypto/async_tx/async_xor.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 3c562f5..e1bce26 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);