[media] gspca: Fix some warnings tied to 'no debug'

This patch fixes the warnings raised by unsetting the option GSPCA_DEBUG.

Signed-off-by: Jean-François Moine <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/video/gspca/gl860/gl860.c

···
 static int sd_probe(struct usb_interface *intf,
 				const struct usb_device_id *id)
 {
-	struct gspca_dev *gspca_dev;
-	s32 ret;
-
-	ret = gspca_dev_probe(intf, id,
+	return gspca_dev_probe(intf, id,
 			&sd_desc_mi1320, sizeof(struct sd), THIS_MODULE);
-
-	if (ret >= 0) {
-		gspca_dev = usb_get_intfdata(intf);
-
-		PDEBUG(D_PROBE,
-			"Camera is now controlling video device %s",
-			video_device_node_name(&gspca_dev->vdev));
-	}
-
-	return ret;
 }
 
 static void sd_disconnect(struct usb_interface *intf)

drivers/media/video/gspca/spca508.c

···
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	struct cam *cam;
-	int data1, data2;
 	const u16 (*init_data)[2];
 	static const u16 (*(init_data_tb[]))[2] = {
 		spca508_vista_init_data,	/* CreativeVista 0 */
···
 		spca508cs110_init_data,		/* MicroInnovationIC200 4 */
 		spca508_init_data,		/* ViewQuestVQ110 5 */
 	};
+
+#ifdef GSPCA_DEBUG
+	int data1, data2;
 
 	/* Read from global register the USB product and vendor IDs, just to
 	 * prove that we can communicate with the device.  This works, which
···
 
 	data1 = reg_read(gspca_dev, 0x8621);
 	PDEBUG(D_PROBE, "Window 1 average luminance: %d", data1);
+#endif
 
 	cam = &gspca_dev->cam;
 	cam->cam_mode = sif_mode;

drivers/media/video/gspca/zc3xx.c

···
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	int i;
-	u8 retbyte;
 	u16 retword;
 
 /*fixme: lack of 8b=b3 (11,12)-> 10, 8b=e0 (14,15,16)-> 12 found in gspcav1*/
···
 	retword |= i2c_read(gspca_dev, 0x01);		/* ID 1 */
 	PDEBUG(D_PROBE, "probe 3wr vga 2 0x%04x", retword);
 	if (retword == 0x2030) {
+#ifdef GSPCA_DEBUG
+		u8 retbyte;
+
 		retbyte = i2c_read(gspca_dev, 0x02);	/* revision number */
 		PDEBUG(D_PROBE, "sensor PO2030 rev 0x%02x", retbyte);
+#endif
 		send_unknown(gspca_dev, SENSOR_PO2030);
 		return retword;
 	}