[mucurses] Avoid potential division by zero

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/hci/mucurses/slk.c b/src/hci/mucurses/slk.c
index 169e0120bdc6261a3c12bf9d155aaa0a1a78656c..2a57b1dee0829e668cc133da06985d71011d4d01 100644 (file)
--- a/src/hci/mucurses/slk.c
+++ b/src/hci/mucurses/slk.c
@@ -269,8 +269,7 @@ int slk_init ( int fmt ) {
                slks->spaces[0] = 3; slks->spaces[1] = 7;
                break;
        default:
-               nblocks = 0; nmaj = 0; nmin = 0;
-               break;
+               return ERR;
        }
 
        // determine maximum label length and major space size