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Subject[PATCH 10/20] async_tx: add missing DMA unmap to async_memset()
Date
Do DMA unmap on ->device_prep_dma_memset failure.

Cc: Dan Williams <djbw@fb.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
crypto/async_tx/async_memset.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c
index 05a4d1e..a6a667b 100644
--- a/crypto/async_tx/async_memset.c
+++ b/crypto/async_tx/async_memset.c
@@ -61,6 +61,9 @@ async_memset(struct page *dest, int val, unsigned int offset, size_t len,

tx = device->device_prep_dma_memset(chan, dma_dest, val, len,
dma_prep_flags);
+ if (!tx)
+ dma_unmap_page(device->dev, dma_dest, len,
+ DMA_FROM_DEVICE);
}

if (tx) {
--
1.8.0


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