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| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2012-11-05 10:00:12 +0000 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-01-07 22:04:57 -0800 |
| commit | f474b6ce30e670498582a6b853c03047bec8009d (patch) | |
| tree | e458d96ebc1bee7280a3195a0876b143088940e0 /crypto/async_tx | |
| parent | 725e579c9a0cc9cb5d2fafc5e517c2de7b3f24b7 (diff) | |
| download | linux-crypto-f474b6ce30e670498582a6b853c03047bec8009d.tar.gz linux-crypto-f474b6ce30e670498582a6b853c03047bec8009d.zip | |
async_tx: add missing DMA unmap to async_memcpy()
Do DMA unmap on ->device_prep_dma_memcpy 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>
Signed-off-by: Dan Williams <djbw@fb.com>
Diffstat (limited to 'crypto/async_tx')
| -rw-r--r-- | crypto/async_tx/async_memcpy.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c index 361b5e82..9e62feff 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) { |