fbdev: fbmem: mark expected switch fall-through

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

---
 drivers/video/fbdev/core/fbmem.c | 1 +
 1 file changed, 1 insertion(+)

index 609438d..5f3133b 100644
@@ -1347,6 +1347,7 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd,
 	case FBIOGET_CON2FBMAP:
 	case FBIOPUT_CON2FBMAP:
 		arg = (unsigned long) compat_ptr(arg);
+		/* fall through */
 	case FBIOBLANK:
 		ret = do_fb_ioctl(info, cmd, arg);
 		break;

2.7.4

Patch queued for 4.19, thanks.

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