[PATCH 4.14 137/146] staging: android: ion: Fix dma direction for dma_sync_sg_for_cpu/device

[Greg Kroah-Hartman]

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

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

From: Sushmita Susheelendra <ssusheel@xxxxxxxxxxxxxx>

commit d6b246bb7a29703f53aa4c050b8b3205d749caee upstream.

Use the direction argument passed into begin_cpu_access
and end_cpu_access when calling the dma_sync_sg_for_cpu/device.
The actual cache primitive called depends on the direction
passed in.

Signed-off-by: Sushmita Susheelendra <ssusheel@xxxxxxxxxxxxxx>
Acked-by: Laura Abbott <labbott@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/staging/android/ion/ion.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -348,7 +348,7 @@ static int ion_dma_buf_begin_cpu_access(
 	mutex_lock(&buffer->lock);
 	list_for_each_entry(a, &buffer->attachments, list) {
 		dma_sync_sg_for_cpu(a->dev, a->table->sgl, a->table->nents,
-				    DMA_BIDIRECTIONAL);
+				    direction);
 	}
 	mutex_unlock(&buffer->lock);
 
@@ -370,7 +370,7 @@ static int ion_dma_buf_end_cpu_access(st
 	mutex_lock(&buffer->lock);
 	list_for_each_entry(a, &buffer->attachments, list) {
 		dma_sync_sg_for_device(a->dev, a->table->sgl, a->table->nents,
-				       DMA_BIDIRECTIONAL);
+				       direction);
 	}
 	mutex_unlock(&buffer->lock);