diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index 7e897de..b3568df 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -1143,7 +1143,7 @@ void cx23885_free_buffer(struct videobuf_queue *q, struct cx23885_buffer *buf)
 
 	BUG_ON(in_interrupt());
 	videobuf_waiton(&buf->vb, 0, 0);
-	videobuf_dma_unmap(q->dev, dma);
+	videobuf_dma_unmap(q, dma);
 	videobuf_dma_free(dma);
 	btcx_riscmem_free(to_pci_dev(q->dev), &buf->risc);
 	buf->vb.state = VIDEOBUF_NEEDS_INIT;