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>

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index e237e9f3312d6b99e5d2eac4a07f534ce03690c2..df560216d7026c87de39c8b86f885ea2443a3d17 100644 (file)
--- 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);