[PATCH] usb: gadget: atmel_usba_udc: Mark expected switch fall-through

[Gustavo A. R. Silva]

Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: at91_dt_defconfig arm):

drivers/usb/gadget/udc/atmel_usba_udc.c:329:13: warning: this statement may 
fall through [-Wimplicit-fallthrough=]

Signed-off-by: Gustavo A. R. Silva <gust...@embeddedor.com>
---
 drivers/usb/gadget/udc/atmel_usba_udc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c 
b/drivers/usb/gadget/udc/atmel_usba_udc.c
index 503d275bc4c4..86ffc8307864 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -327,6 +327,7 @@ static int usba_config_fifo_table(struct usba_udc *udc)
        switch (fifo_mode) {
        default:
                fifo_mode = 0;
+               /* fall through */
        case 0:
                udc->fifo_cfg = NULL;
                n = 0;
-- 
2.22.0