[media] gspca: Remove gspca-specific debug magic

Instead use v4l2_dbg and v4l2_err. Note that the PDEBUG macro is kept to
make this patch-set less invasive, but it is simply a wrapper around
v4l2_dbg now. Most of the other changes are there to make the dev parameter
for the v4l2_xxx macros available everywhere we do logging.

Signed-off-by: Theodore Kilgore <kilgota@auburn.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/usb/gspca/etoms.c b/drivers/media/usb/gspca/etoms.c
index 38f68e1..948a635 100644
--- a/drivers/media/usb/gspca/etoms.c
+++ b/drivers/media/usb/gspca/etoms.c
@@ -163,12 +163,11 @@
 {
 	struct usb_device *dev = gspca_dev->dev;
 
-#ifdef GSPCA_DEBUG
 	if (len > USB_BUF_SZ) {
-		pr_err("reg_r: buffer overflow\n");
+		PERR("reg_r: buffer overflow\n");
 		return;
 	}
-#endif
+
 	usb_control_msg(dev,
 			usb_rcvctrlpipe(dev, 0),
 			0,
@@ -201,13 +200,12 @@
 {
 	struct usb_device *dev = gspca_dev->dev;
 
-#ifdef GSPCA_DEBUG
 	if (len > USB_BUF_SZ) {
 		pr_err("reg_w: buffer overflow\n");
 		return;
 	}
 	PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
-#endif
+
 	memcpy(gspca_dev->usb_buf, buffer, len);
 	usb_control_msg(dev,
 			usb_sndctrlpipe(dev, 0),
@@ -274,7 +272,7 @@
 		     : 0);		/* stopvideo */
 	ret = Et_WaitStatus(gspca_dev);
 	if (ret != 0)
-		PDEBUG(D_ERR, "timeout video on/off");
+		PERR("timeout video on/off");
 	return ret;
 }