net: mdio: Clarify code flow Covarity 244085 & 244090

Document that the lack of breaks is intentional.

Series-to: u-boot
Series-cc: ti

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>

diff --git a/cmd/mdio.c b/cmd/mdio.c
index add6440..22c8fbe 100644 (file)
--- a/cmd/mdio.c
+++ b/cmd/mdio.c
@@ -253,12 +253,13 @@ static int do_mdio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
        case 'w':
                if (pos > 1)
                        data = simple_strtoul(argv[pos--], NULL, 16);
+               /* Intentional fall-through - Get reg for read and write */
        case 'r':
                if (pos > 1)
                        if (extract_reg_range(argv[pos--], &devadlo, &devadhi,
                                              &reglo, &reghi))
                                return CMD_RET_FAILURE;
-
+               /* Intentional fall-through - Get phy for all commands */
        default:
                if (pos > 1)
                        if (extract_phy_range(&argv[2], pos - 1, &bus,