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Date: Wed, 05 Dec 2012 12:10:39 +0100 From: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com> To: vinod.koul@...el.com Cc: linux-kernel@...r.kernel.org, djbw@...com, dwmw2@...radead.org, hskinnemoen@...il.com, iws@...o.caltech.edu, vipin.kumar@...com, t.figa@...sung.com, kyungmin.park@...sung.com, Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com> Subject: [PATCH resend 1/7] async_tx: add missing DMA unmap to async_memcpy() Do DMA unmap on ->device_prep_dma_memcpy failure. Acked-by: Dan Williams <djbw@...com> Reviewed-by: Tomasz Figa <t.figa@...sung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com> Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com> --- crypto/async_tx/async_memcpy.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c index 361b5e8..9e62fef 100644 --- a/crypto/async_tx/async_memcpy.c +++ b/crypto/async_tx/async_memcpy.c @@ -67,6 +67,12 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, tx = device->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, dma_prep_flags); + if (!tx) { + dma_unmap_page(device->dev, dma_dest, len, + DMA_FROM_DEVICE); + dma_unmap_page(device->dev, dma_src, len, + DMA_TO_DEVICE); + } } if (tx) { -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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