video: fbdev: arcfb: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through.

Addresses-Coverity-ID: 115017 ("Missing break in switch")

---
 drivers/video/fbdev/arcfb.c | 2 ++
 1 file changed, 2 insertions(+)

index 7e87d0d..a48741a 100644
@@ -419,6 +419,8 @@ static int arcfb_ioctl(struct fb_info *info,
 			schedule();
 			finish_wait(&arcfb_waitq, &wait);
 		}
+		/* fall through */
+
 		case FBIO_GETCONTROL2:
 		{
 			unsigned char ctl2;

2.7.4

Patch queued for 4.20, thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics