cmd: mdio: prevent data abort when no mdio bus is found

[oweals/u-boot.git] / cmd / mdio.c

diff --git a/cmd/mdio.c b/cmd/mdio.c
index a6fa9266d0c46ce1620324e519d007dc7d935151..add6440813f6f4f759c0d966eb0c8e78d7f818c7 100644 (file)
--- a/cmd/mdio.c
+++ b/cmd/mdio.c
@@ -268,6 +268,11 @@ static int do_mdio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
                break;
        }
 
+       if (!bus) {
+               puts("No MDIO bus found\n");
+               return CMD_RET_FAILURE;
+       }
+
        if (op[0] == 'l') {
                mdio_list_devices();