[PATCH 4.5 124/124] staging: android: ion: Set the length of the DMA sg entries in buffer

[Greg Kroah-Hartman]

4.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Liviu Dudau <liviu.du...@arm.com>

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.du...@arm.com>
Signed-off-by: Jon Medhurst <t...@linaro.org>
Acked-by: Laura Abbott <labb...@redhat.com>
Cc: Shawn Guo <shawn...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/staging/android/ion/ion.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -251,8 +251,10 @@ static struct ion_buffer *ion_buffer_cre
         * 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);