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staging: android: ion: Set the length of the DMA sg entries in buffer

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commit 70bc916b2c 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>
This commit is contained in:
Liviu Dudau
2016-01-21 11:57:47 +00:00
committed by Greg Kroah-Hartman
parent c1491657c5
commit 440e9a240c
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/android/ion/ion.c
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@@ -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);