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| author | Liviu Dudau <Liviu.Dudau@arm.com> | 2016-01-21 11:57:47 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-20 15:42:16 +0900 |
| commit | 440e9a240ca22cbed85bca3d6950cd75e1349775 (patch) | |
| tree | 343bfb959f06e6a4d242ae81d4c1daf9afbdb613 | |
| parent | c1491657c533307ac2f341e1b7ecdf156de3f647 (diff) | |
| download | lwn-440e9a240ca22cbed85bca3d6950cd75e1349775.tar.gz lwn-440e9a240ca22cbed85bca3d6950cd75e1349775.zip | |
staging: android: ion: Set the length of the DMA sg entries in buffer
commit 70bc916b2c80913753fb188d4daee50a64d21ba0 upstream.
ion_buffer_create() will allocate a buffer and then create a DMA
mapping for it, but it forgot to set the length of the page entries.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/android/ion/ion.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index e237e9f3312d..df560216d702 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -251,8 +251,10 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap, * memory coming from the heaps is ready for dma, ie if it has a * cached mapping that mapping has been invalidated */ - for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i) + for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i) { sg_dma_address(sg) = sg_phys(sg); + sg_dma_len(sg) = sg->length; + } mutex_lock(&dev->buffer_lock); ion_buffer_add(dev, buffer); mutex_unlock(&dev->buffer_lock); |