staging: android: ion: Fix dma direction for dma_sync_sg_for_cpu/device

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@codeaurora.org>
Acked-by: Laura Abbott <labbott@redhat.com>
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 93e2c90..83dc329 100644 (file)
--- 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(struct dma_buf *dmabuf,
        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(struct dma_buf *dmabuf,
        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);