Merge branch 'patchwork' into v4l_for_linus

* patchwork: (404 commits)
  [media] uvcvideo: add support for VIDIOC_QUERY_EXT_CTRL
  [media] uvcvideo: fix cropcap v4l2-compliance failure
  [media] media: omap3isp: remove unused clkdev
  [media] coda: Add tracing support
  [media] coda: drop dma_sync_single_for_device in coda_bitstream_queue
  [media] coda: fix fill bitstream errors in nonstreaming case
  [media] coda: call SEQ_END when the first queue is stopped
  [media] coda: fail to start streaming if userspace set invalid formats
  [media] coda: remove duplicate error messages for buffer allocations
  [media] coda: move parameter buffer in together with context buffer allocation
  [media] coda: allocate bitstream buffer from REQBUFS, size depends on the format
  [media] coda: allocate per-context buffers from REQBUFS
  [media] coda: use strlcpy instead of snprintf
  [media] coda: bitstream payload is unsigned
  [media] coda: fix double call to debugfs_remove
  [media] coda: check kasprintf return value in coda_open
  [media] coda: bitrate can only be set in kbps steps
  [media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and v4l2_m2m_buf_remove
  [media] s5p-mfc: set allow_zero_bytesused flag for vb2_queue_init
  [media] coda: set allow_zero_bytesused flag for vb2_queue_init
  ...

1 files changed, 11 insertions, 22 deletions

diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c
index 3f295b4d1a3d..983ea8339154 100644
--- a/drivers/media/usb/cx231xx/cx231xx-417.c
+++ b/drivers/media/usb/cx231xx/cx231xx-417.c
@@ -1868,13 +1868,9 @@ void cx231xx_417_unregister(struct cx231xx *dev)
 	dprintk(1, "%s()\n", __func__);
 	dprintk(3, "%s()\n", __func__);
 
-	if (dev->v4l_device) {
-		if (-1 != dev->v4l_device->minor)
-			video_unregister_device(dev->v4l_device);
-		else
-			video_device_release(dev->v4l_device);
+	if (video_is_registered(&dev->v4l_device)) {
+		video_unregister_device(&dev->v4l_device);
 		v4l2_ctrl_handler_free(&dev->mpeg_ctrl_handler.hdl);
-		dev->v4l_device = NULL;
 	}
 }
 
@@ -1911,25 +1907,21 @@ static struct cx2341x_handler_ops cx231xx_ops = {
 	.s_video_encoding = cx231xx_s_video_encoding,
 };
 
-static struct video_device *cx231xx_video_dev_alloc(
+static void cx231xx_video_dev_init(
 	struct cx231xx *dev,
 	struct usb_device *usbdev,
-	struct video_device *template,
-	char *type)
+	struct video_device *vfd,
+	const struct video_device *template,
+	const char *type)
 {
-	struct video_device *vfd;
-
 	dprintk(1, "%s()\n", __func__);
-	vfd = video_device_alloc();
-	if (NULL == vfd)
-		return NULL;
 	*vfd = *template;
 	snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name,
 		type, cx231xx_boards[dev->model].name);
 
 	vfd->v4l2_dev = &dev->v4l2_dev;
 	vfd->lock = &dev->lock;
-	vfd->release = video_device_release;
+	vfd->release = video_device_release_empty;
 	vfd->ctrl_handler = &dev->mpeg_ctrl_handler.hdl;
 	video_set_drvdata(vfd, dev);
 	if (dev->tuner_type == TUNER_ABSENT) {
@@ -1938,9 +1930,6 @@ static struct video_device *cx231xx_video_dev_alloc(
 		v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
 		v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
 	}
-
-	return vfd;
-
 }
 
 int cx231xx_417_register(struct cx231xx *dev)
@@ -1983,9 +1972,9 @@ int cx231xx_417_register(struct cx231xx *dev)
 	cx2341x_handler_set_50hz(&dev->mpeg_ctrl_handler, false);
 
 	/* Allocate and initialize V4L video device */
-	dev->v4l_device = cx231xx_video_dev_alloc(dev,
-		dev->udev, &cx231xx_mpeg_template, "mpeg");
-	err = video_register_device(dev->v4l_device,
+	cx231xx_video_dev_init(dev, dev->udev,
+			&dev->v4l_device, &cx231xx_mpeg_template, "mpeg");
+	err = video_register_device(&dev->v4l_device,
 		VFL_TYPE_GRABBER, -1);
 	if (err < 0) {
 		dprintk(3, "%s: can't register mpeg device\n", dev->name);
@@ -1994,7 +1983,7 @@ int cx231xx_417_register(struct cx231xx *dev)
 	}
 
 	dprintk(3, "%s: registered device video%d [mpeg]\n",
-	       dev->name, dev->v4l_device->num);
+	       dev->name, dev->v4l_device.num);
 
 	return 0;
 }