Messages in this thread Patch in this message | | | From | Bartlomiej Zolnierkiewicz <> | Subject | [PATCH resend 7/7] async_tx: add missing DMA unmap to async_memset() | Date | Wed, 05 Dec 2012 12:10:45 +0100 |
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Do DMA unmap on ->device_prep_dma_memset failure.
Acked-by: Dan Williams <djbw@fb.com> Reviewed-by: 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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