[media] gspca - main: Cleanup source

- change copyright and erroneous comment
- small code optimization
- have constant the device template
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/gspca.c

 /*
  * Main USB camera driver
  *
- * Copyright (C) 2008-2010 Jean-François Moine <http://moinejf.free.fr>
+ * Copyright (C) 2008-2011 Jean-François Moine <http://moinejf.free.fr>
  *
  * Camera button input handling by Márton Németh
  * Copyright (C) 2009-2010 Márton Németh <nm127@freemail.hu>
@@ -414,7 +414,6 @@ static void bulk_irq(struct urb *urb)
  *	- 0 or many INTER_PACKETs
  *	- one LAST_PACKET
  * DISCARD_PACKET invalidates the whole frame.
- * On LAST_PACKET, a new frame is returned.
  */
 void gspca_frame_add(struct gspca_dev *gspca_dev,
 			enum gspca_packet_type packet_type,
@@ -1525,10 +1524,12 @@ static int vidioc_reqbufs(struct file *file, void *priv,
 		gspca_dev->usb_err = 0;
 		gspca_stream_off(gspca_dev);
 		mutex_unlock(&gspca_dev->usb_lock);
-	}
-	/* Don't restart the stream when switching from read to mmap mode */
+
+		/* Don't restart the stream when switching from read
+		 * to mmap mode */
 		if (gspca_dev->memory == GSPCA_MEMORY_READ)
 			streaming = 0;
+	}
 
 	/* free the previous allocated buffers, if any */
 	if (gspca_dev->nframes != 0)
@@ -2152,7 +2153,7 @@ static const struct v4l2_ioctl_ops dev_ioctl_ops = {
 	.vidioc_g_chip_ident	= vidioc_g_chip_ident,
 };
 
-static struct video_device gspca_template = {
+static const struct video_device gspca_template = {
 	.name = "gspca main driver",
 	.fops = &dev_fops,
 	.ioctl_ops = &dev_ioctl_ops,