diff options
Diffstat (limited to 'drivers/media/pci/saa7134/saa7134-video.c')
| -rw-r--r-- | drivers/media/pci/saa7134/saa7134-video.c | 16 |
1 files changed, 1 insertions, 15 deletions
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c index fc4a427cb51..701b52f3468 100644 --- a/drivers/media/pci/saa7134/saa7134-video.c +++ b/drivers/media/pci/saa7134/saa7134-video.c @@ -883,7 +883,6 @@ static int buffer_prepare(struct vb2_buffer *vb2) struct saa7134_buf *buf = container_of(vb2, struct saa7134_buf, vb2); struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2, 0); unsigned int size; - int ret; if (dma->sgl->offset) { pr_err("The buffer is not page-aligned\n"); @@ -896,23 +895,10 @@ static int buffer_prepare(struct vb2_buffer *vb2) vb2_set_plane_payload(vb2, 0, size); vb2->v4l2_buf.field = dev->field; - ret = dma_map_sg(&dev->pci->dev, dma->sgl, dma->nents, DMA_FROM_DEVICE); - if (!ret) - return -EIO; return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents, saa7134_buffer_startpage(buf)); } -static void buffer_finish(struct vb2_buffer *vb2) -{ - struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv; - struct saa7134_dev *dev = dmaq->dev; - struct saa7134_buf *buf = container_of(vb2, struct saa7134_buf, vb2); - struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2, 0); - - dma_unmap_sg(&dev->pci->dev, dma->sgl, dma->nents, DMA_FROM_DEVICE); -} - static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) @@ -932,6 +918,7 @@ static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt, *nbuffers = saa7134_buffer_count(size, *nbuffers); *nplanes = 1; sizes[0] = size; + alloc_ctxs[0] = dev->alloc_ctx; return 0; } @@ -1004,7 +991,6 @@ static struct vb2_ops vb2_qops = { .queue_setup = queue_setup, .buf_init = buffer_init, .buf_prepare = buffer_prepare, - .buf_finish = buffer_finish, .buf_queue = saa7134_vb2_buffer_queue, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, |