V4L/DVB (10140): gp8psk: fix incorrect return code (EINVAL instead of -EINVAL)

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/dvb-usb/gp8psk.c

@@ -187,7 +187,7 @@ int gp8psk_bcm4500_reload(struct dvb_usb_device *d)
 	/* load BCM4500 firmware */
 	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
 		if (gp8psk_load_bcm4500fw(d))
-			return EINVAL;
+			return -EINVAL;
 	return 0;
 }