V4L/DVB (6735): Reorder functions to make easier to compare with the previous code

After this patch, the order of the functions will be the same as before the
patch converting the driver to user video_ioctl2. This makes easier to diff
between the previous version and the newer one.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index 954542e..76b841d 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -1670,30 +1670,6 @@
 	}
 }
 
-static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
-{
-	struct saa7134_fh *fh = priv;
-	struct saa7134_dev *dev = fh->dev;
-
-	*i = dev->ctl_input;
-	return 0;
-}
-
-static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
-{
-	struct saa7134_fh *fh = priv;
-	struct saa7134_dev *dev = fh->dev;
-
-	if (i < 0  ||  i >= SAA7134_INPUT_MAX)
-		return -EINVAL;
-	if (NULL == card_in(dev, i).name)
-		return -EINVAL;
-	mutex_lock(&dev->lock);
-	video_mux(dev, i);
-	mutex_unlock(&dev->lock);
-	return 0;
-}
-
 static int vidioc_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *c)
 {
@@ -1744,6 +1720,30 @@
 	return 0;
 }
 
+static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
+{
+	struct saa7134_fh *fh = priv;
+	struct saa7134_dev *dev = fh->dev;
+
+	*i = dev->ctl_input;
+	return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
+{
+	struct saa7134_fh *fh = priv;
+	struct saa7134_dev *dev = fh->dev;
+
+	if (i < 0  ||  i >= SAA7134_INPUT_MAX)
+		return -EINVAL;
+	if (NULL == card_in(dev, i).name)
+		return -EINVAL;
+	mutex_lock(&dev->lock);
+	video_mux(dev, i);
+	mutex_unlock(&dev->lock);
+	return 0;
+}
+
 static int vidioc_querycap(struct file *file, void  *priv,
 					struct v4l2_capability *cap)
 {
@@ -1847,6 +1847,55 @@
 	return 0;
 }
 
+static int vidioc_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
+{
+	struct saa7134_fh *fh = f;
+	struct saa7134_dev *dev = fh->dev;
+
+	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
+		return -EINVAL;
+	crop->c = dev->crop_current;
+	return 0;
+}
+
+static int vidioc_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
+{
+	struct saa7134_fh *fh = f;
+	struct saa7134_dev *dev = fh->dev;
+	struct v4l2_rect *b = &dev->crop_bounds;
+
+	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
+		return -EINVAL;
+	if (crop->c.height < 0)
+		return -EINVAL;
+	if (crop->c.width < 0)
+		return -EINVAL;
+
+	if (res_locked(fh->dev, RESOURCE_OVERLAY))
+		return -EBUSY;
+	if (res_locked(fh->dev, RESOURCE_VIDEO))
+		return -EBUSY;
+
+	if (crop->c.top < b->top)
+		crop->c.top = b->top;
+	if (crop->c.top > b->top + b->height)
+		crop->c.top = b->top + b->height;
+	if (crop->c.height > b->top - crop->c.top + b->height)
+		crop->c.height = b->top - crop->c.top + b->height;
+
+	if (crop->c.left < b->left)
+		crop->c.left = b->left;
+	if (crop->c.left > b->left + b->width)
+		crop->c.left = b->left + b->width;
+	if (crop->c.width > b->left - crop->c.left + b->width)
+		crop->c.width = b->left - crop->c.left + b->width;
+
+	dev->crop_current = crop->c;
+	return 0;
+}
+
 static int vidioc_g_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *t)
 {
@@ -1939,97 +1988,6 @@
 	return 0;
 }
 
-static int vidioc_streamon(struct file *file, void *priv,
-					enum v4l2_buf_type type)
-{
-	struct saa7134_fh *fh = priv;
-	struct saa7134_dev *dev = fh->dev;
-	int res = saa7134_resource(fh);
-
-	if (!res_get(dev, fh, res))
-		return -EBUSY;
-
-	return videobuf_streamon(saa7134_queue(fh));
-}
-
-static int vidioc_streamoff(struct file *file, void *priv,
-					enum v4l2_buf_type type)
-{
-	int err;
-	struct saa7134_fh *fh = priv;
-	struct saa7134_dev *dev = fh->dev;
-	int res = saa7134_resource(fh);
-
-	err = videobuf_streamoff(saa7134_queue(fh));
-	if (err < 0)
-		return err;
-	res_free(dev, fh, res);
-	return 0;
-}
-
-static int vidioc_reqbufs(struct file *file, void *priv,
-					struct v4l2_requestbuffers *p)
-{
-	struct saa7134_fh *fh = priv;
-	return videobuf_reqbufs(saa7134_queue(fh), p);
-}
-
-static int vidioc_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
-{
-	struct saa7134_fh *fh = f;
-	struct saa7134_dev *dev = fh->dev;
-	struct v4l2_rect *b = &dev->crop_bounds;
-
-	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
-	    crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
-		return -EINVAL;
-	if (crop->c.height < 0)
-		return -EINVAL;
-	if (crop->c.width < 0)
-		return -EINVAL;
-
-	if (res_locked(fh->dev, RESOURCE_OVERLAY))
-		return -EBUSY;
-	if (res_locked(fh->dev, RESOURCE_VIDEO))
-		return -EBUSY;
-
-	if (crop->c.top < b->top)
-		crop->c.top = b->top;
-	if (crop->c.top > b->top + b->height)
-		crop->c.top = b->top + b->height;
-	if (crop->c.height > b->top - crop->c.top + b->height)
-		crop->c.height = b->top - crop->c.top + b->height;
-
-	if (crop->c.left < b->left)
-		crop->c.left = b->left;
-	if (crop->c.left > b->left + b->width)
-		crop->c.left = b->left + b->width;
-	if (crop->c.width > b->left - crop->c.left + b->width)
-		crop->c.width = b->left - crop->c.left + b->width;
-
-	dev->crop_current = crop->c;
-	return 0;
-}
-
-static int vidioc_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
-{
-	struct saa7134_fh *fh = f;
-	struct saa7134_dev *dev = fh->dev;
-
-	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
-	    crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
-		return -EINVAL;
-	crop->c = dev->crop_current;
-	return 0;
-}
-
-static int vidioc_g_parm(struct file *file, void *fh,
-				struct v4l2_streamparm *parm)
-{
-	memset(parm, 0, sizeof(*parm));
-	return 0;
-}
-
 static int vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
 {
 	struct saa7134_fh *fh = f;
@@ -2048,92 +2006,6 @@
 	return v4l2_prio_change(&dev->prio, &fh->prio, prio);
 }
 
-static int vidioc_g_fbuf(struct file *file, void *f,
-				struct v4l2_framebuffer *fb)
-{
-	struct saa7134_fh *fh = f;
-	struct saa7134_dev *dev = fh->dev;
-
-	*fb = dev->ovbuf;
-	fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
-
-	return 0;
-}
-
-static int vidioc_s_fbuf(struct file *file, void *f,
-					struct v4l2_framebuffer *fb)
-{
-	struct saa7134_fh *fh = f;
-	struct saa7134_dev *dev = fh->dev;
-	struct saa7134_format *fmt;
-
-	if (!capable(CAP_SYS_ADMIN) &&
-	   !capable(CAP_SYS_RAWIO))
-		return -EPERM;
-
-	/* check args */
-	fmt = format_by_fourcc(fb->fmt.pixelformat);
-	if (NULL == fmt)
-		return -EINVAL;
-
-	/* ok, accept it */
-	dev->ovbuf = *fb;
-	dev->ovfmt = fmt;
-	if (0 == dev->ovbuf.fmt.bytesperline)
-		dev->ovbuf.fmt.bytesperline =
-			dev->ovbuf.fmt.width*fmt->depth/8;
-	return 0;
-}
-
-static int vidioc_querybuf(struct file *file, void *priv,
-					struct v4l2_buffer *b)
-{
-	struct saa7134_fh *fh = priv;
-	return videobuf_querybuf(saa7134_queue(fh), b);
-}
-
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
-	struct saa7134_fh *fh = priv;
-	return videobuf_qbuf(saa7134_queue(fh), b);
-}
-
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
-	struct saa7134_fh *fh = priv;
-	return videobuf_dqbuf(saa7134_queue(fh), b,
-				file->f_flags & O_NONBLOCK);
-}
-
-static int vidioc_overlay(struct file *file, void *f, unsigned int on)
-{
-	struct saa7134_fh *fh = f;
-	struct saa7134_dev *dev = fh->dev;
-	unsigned long flags;
-
-	if (on) {
-		if (saa7134_no_overlay > 0) {
-			dprintk("no_overlay\n");
-			return -EINVAL;
-		}
-
-		if (!res_get(dev, fh, RESOURCE_OVERLAY))
-			return -EBUSY;
-		spin_lock_irqsave(&dev->slock, flags);
-		start_preview(dev, fh);
-		spin_unlock_irqrestore(&dev->slock, flags);
-	}
-	if (!on) {
-		if (!res_check(fh, RESOURCE_OVERLAY))
-			return -EINVAL;
-		spin_lock_irqsave(&dev->slock, flags);
-		stop_preview(dev, fh);
-		spin_unlock_irqrestore(&dev->slock, flags);
-		res_free(dev, fh, RESOURCE_OVERLAY);
-	}
-	return 0;
-}
-
 static int vidioc_enum_fmt_cap(struct file *file, void  *priv,
 					struct v4l2_fmtdesc *f)
 {
@@ -2176,6 +2048,72 @@
 	return 0;
 }
 
+static int vidioc_g_fbuf(struct file *file, void *f,
+				struct v4l2_framebuffer *fb)
+{
+	struct saa7134_fh *fh = f;
+	struct saa7134_dev *dev = fh->dev;
+
+	*fb = dev->ovbuf;
+	fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
+
+	return 0;
+}
+
+static int vidioc_s_fbuf(struct file *file, void *f,
+					struct v4l2_framebuffer *fb)
+{
+	struct saa7134_fh *fh = f;
+	struct saa7134_dev *dev = fh->dev;
+	struct saa7134_format *fmt;
+
+	if (!capable(CAP_SYS_ADMIN) &&
+	   !capable(CAP_SYS_RAWIO))
+		return -EPERM;
+
+	/* check args */
+	fmt = format_by_fourcc(fb->fmt.pixelformat);
+	if (NULL == fmt)
+		return -EINVAL;
+
+	/* ok, accept it */
+	dev->ovbuf = *fb;
+	dev->ovfmt = fmt;
+	if (0 == dev->ovbuf.fmt.bytesperline)
+		dev->ovbuf.fmt.bytesperline =
+			dev->ovbuf.fmt.width*fmt->depth/8;
+	return 0;
+}
+
+static int vidioc_overlay(struct file *file, void *f, unsigned int on)
+{
+	struct saa7134_fh *fh = f;
+	struct saa7134_dev *dev = fh->dev;
+	unsigned long flags;
+
+	if (on) {
+		if (saa7134_no_overlay > 0) {
+			dprintk("no_overlay\n");
+			return -EINVAL;
+		}
+
+		if (!res_get(dev, fh, RESOURCE_OVERLAY))
+			return -EBUSY;
+		spin_lock_irqsave(&dev->slock, flags);
+		start_preview(dev, fh);
+		spin_unlock_irqrestore(&dev->slock, flags);
+	}
+	if (!on) {
+		if (!res_check(fh, RESOURCE_OVERLAY))
+			return -EINVAL;
+		spin_lock_irqsave(&dev->slock, flags);
+		stop_preview(dev, fh);
+		spin_unlock_irqrestore(&dev->slock, flags);
+		res_free(dev, fh, RESOURCE_OVERLAY);
+	}
+	return 0;
+}
+
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
 {
@@ -2184,6 +2122,68 @@
 }
 #endif
 
+static int vidioc_reqbufs(struct file *file, void *priv,
+					struct v4l2_requestbuffers *p)
+{
+	struct saa7134_fh *fh = priv;
+	return videobuf_reqbufs(saa7134_queue(fh), p);
+}
+
+static int vidioc_querybuf(struct file *file, void *priv,
+					struct v4l2_buffer *b)
+{
+	struct saa7134_fh *fh = priv;
+	return videobuf_querybuf(saa7134_queue(fh), b);
+}
+
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+	struct saa7134_fh *fh = priv;
+	return videobuf_qbuf(saa7134_queue(fh), b);
+}
+
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+	struct saa7134_fh *fh = priv;
+	return videobuf_dqbuf(saa7134_queue(fh), b,
+				file->f_flags & O_NONBLOCK);
+}
+
+static int vidioc_streamon(struct file *file, void *priv,
+					enum v4l2_buf_type type)
+{
+	struct saa7134_fh *fh = priv;
+	struct saa7134_dev *dev = fh->dev;
+	int res = saa7134_resource(fh);
+
+	if (!res_get(dev, fh, res))
+		return -EBUSY;
+
+	return videobuf_streamon(saa7134_queue(fh));
+}
+
+static int vidioc_streamoff(struct file *file, void *priv,
+					enum v4l2_buf_type type)
+{
+	int err;
+	struct saa7134_fh *fh = priv;
+	struct saa7134_dev *dev = fh->dev;
+	int res = saa7134_resource(fh);
+
+	err = videobuf_streamoff(saa7134_queue(fh));
+	if (err < 0)
+		return err;
+	res_free(dev, fh, res);
+	return 0;
+}
+
+static int vidioc_g_parm(struct file *file, void *fh,
+				struct v4l2_streamparm *parm)
+{
+	memset(parm, 0, sizeof(*parm));
+	return 0;
+}
+
 static int radio_querycap(struct file *file, void *priv,
 					struct v4l2_capability *cap)
 {