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

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>
Cc: stable <stable@vger.kernel.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 a7d9b0e9857225abf7a6c88885d15e76afc6627b..f480885e346b69cb6ec881abefca0ee3aaf9fd15 100644 (file)
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -346,7 +346,7 @@ 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);
 
@@ -368,7 +368,7 @@ 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);