V4L/DVB (6252): Adapt drivers to use the newer videobuf modules

PCI-dependent videobuf_foo methods were renamed as videobuf_pci_foo.

Also, videobuf_dmabuf is now part of videobuf-dma-sg private struct.
So, to access it, a subroutine call is needed.

This patch renames all occurences of those function calls to be
consistent with the video-buf split.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
http://thread.gmane.org/gmane.comp.video.video4linux/34978/focus=34981
Reviewed-by: Ricardo Cerqueira <v4l@cerqueira.org>
diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index b4770ae..67d1b1b 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -53,13 +53,14 @@
 void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q,
 						struct saa7146_buf *buf)
 {
+	struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 	DEB_EE(("dev:%p, buf:%p\n",dev,buf));
 
 	BUG_ON(in_interrupt());
 
 	videobuf_waiton(&buf->vb,0,0);
-	videobuf_dma_unmap(q, &buf->vb.dma);
-	videobuf_dma_free(&buf->vb.dma);
+	videobuf_dma_unmap(q, dma);
+	videobuf_dma_free(dma);
 	buf->vb.state = STATE_NEEDS_INIT;
 }