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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>
This commit is contained in:
Sushmita Susheelendra 2017-12-15 13:59:13 -07:00 committed by Greg Kroah-Hartman
parent f292b9b280
commit d6b246bb7a
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/android/ion/ion.c
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@ -346,7 +346,7 @@ static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
mutex_lock(&buffer->lock); mutex_lock(&buffer->lock);
list_for_each_entry(a, &buffer->attachments, list) { list_for_each_entry(a, &buffer->attachments, list) {
dma_sync_sg_for_cpu(a->dev, a->table->sgl, a->table->nents, dma_sync_sg_for_cpu(a->dev, a->table->sgl, a->table->nents,
DMA_BIDIRECTIONAL); direction);
} }
mutex_unlock(&buffer->lock); mutex_unlock(&buffer->lock);
@ -368,7 +368,7 @@ static int ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
mutex_lock(&buffer->lock); mutex_lock(&buffer->lock);
list_for_each_entry(a, &buffer->attachments, list) { list_for_each_entry(a, &buffer->attachments, list) {
dma_sync_sg_for_device(a->dev, a->table->sgl, a->table->nents, dma_sync_sg_for_device(a->dev, a->table->sgl, a->table->nents,
DMA_BIDIRECTIONAL); direction);
} }
mutex_unlock(&buffer->lock); mutex_unlock(&buffer->lock);