From: Hans Verkuil <hans.verkuil@xxxxxxxxx> Only if new_cookies is set do you need to build the page table, otherwise it will be unchanged. Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> --- drivers/media/pci/saa7134/saa7134-ts.c | 2 ++ drivers/media/pci/saa7134/saa7134-vbi.c | 2 ++ drivers/media/pci/saa7134/saa7134-video.c | 2 ++ 3 files changed, 6 insertions(+) diff --git a/drivers/media/pci/saa7134/saa7134-ts.c b/drivers/media/pci/saa7134/saa7134-ts.c index 2709b83..4095776 100644 --- a/drivers/media/pci/saa7134/saa7134-ts.c +++ b/drivers/media/pci/saa7134/saa7134-ts.c @@ -107,6 +107,8 @@ int saa7134_ts_buffer_prepare(struct vb2_buffer *vb2) vb2_set_plane_payload(vb2, 0, size); vb2->v4l2_buf.field = dev->field; + if (!vb2->new_cookies) + return 0; return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents, saa7134_buffer_startpage(buf)); } diff --git a/drivers/media/pci/saa7134/saa7134-vbi.c b/drivers/media/pci/saa7134/saa7134-vbi.c index e188903..5b422d0 100644 --- a/drivers/media/pci/saa7134/saa7134-vbi.c +++ b/drivers/media/pci/saa7134/saa7134-vbi.c @@ -131,6 +131,8 @@ static int buffer_prepare(struct vb2_buffer *vb2) vb2_set_plane_payload(vb2, 0, size); + if (!vb2->new_cookies) + return 0; return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents, saa7134_buffer_startpage(buf)); } diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c index 15a686b..3ab39be 100644 --- a/drivers/media/pci/saa7134/saa7134-video.c +++ b/drivers/media/pci/saa7134/saa7134-video.c @@ -895,6 +895,8 @@ static int buffer_prepare(struct vb2_buffer *vb2) vb2_set_plane_payload(vb2, 0, size); vb2->v4l2_buf.field = dev->field; + if (!vb2->new_cookies) + return 0; return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents, saa7134_buffer_startpage(buf)); } -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
