[media] v4l: soc-camera: switch to .unlocked_ioctl

Use the V4L mutex infrastructure in soc-camera core and drivers and switch to
.unlocked_ioctl.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/omap1_camera.c b/drivers/media/video/omap1_camera.c
index cbfd07f..0a2fb2b 100644
--- a/drivers/media/video/omap1_camera.c
+++ b/drivers/media/video/omap1_camera.c
@@ -1365,12 +1365,12 @@
 		videobuf_queue_dma_contig_init(q, &omap1_videobuf_ops,
 				icd->dev.parent, &pcdev->lock,
 				V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
-				sizeof(struct omap1_cam_buf), icd, NULL);
+				sizeof(struct omap1_cam_buf), icd, &icd->video_lock);
 	else
 		videobuf_queue_sg_init(q, &omap1_videobuf_ops,
 				icd->dev.parent, &pcdev->lock,
 				V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
-				sizeof(struct omap1_cam_buf), icd, NULL);
+				sizeof(struct omap1_cam_buf), icd, &icd->video_lock);
 
 	/* use videobuf mode (auto)selected with the module parameter */
 	pcdev->vb_mode = sg_mode ? OMAP1_CAM_DMA_SG : OMAP1_CAM_DMA_CONTIG;