usb: gadget: serial: mark expected switch fall-through

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

Addresses-Coverity-ID: 1350962
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 4176216..961457e 100644 (file)
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -1078,6 +1078,7 @@ static void gs_complete_out(struct usb_ep *ep, struct usb_request *req)
        default:
                pr_warn("%s: unexpected %s status %d\n",
                        __func__, ep->name, req->status);
+               /* fall through */
        case 0:
                /* normal completion */
                spin_lock(&info->con_lock);