Do DMA unmap on ->device_prep_dma_memset failure.
Cc: Dan Williams <[email protected]>
Cc: Tomasz Figa <[email protected]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
---
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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