V4L/DVB (9079): gspca: Return error code from stream start functions.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/gspca/spca506.c b/drivers/media/video/gspca/spca506.c
index 195dce9..645ee9d 100644
--- a/drivers/media/video/gspca/spca506.c
+++ b/drivers/media/video/gspca/spca506.c
@@ -422,7 +422,7 @@
 	return 0;
 }
 
-static void sd_start(struct gspca_dev *gspca_dev)
+static int sd_start(struct gspca_dev *gspca_dev)
 {
 	struct usb_device *dev = gspca_dev->dev;
 	__u16 norme;
@@ -549,6 +549,7 @@
 	PDEBUG(D_STREAM, "webcam started");
 	spca506_GetNormeInput(gspca_dev, &norme, &channel);
 	spca506_SetNormeInput(gspca_dev, norme, channel);
+	return 0;
 }
 
 static void sd_stopN(struct gspca_dev *gspca_dev)