device.c, bug #342, prevent crash when using 'alter'

#342 SegFault alter command https://sourceforge.net/p/ngspice/bugs/342/
2017-04-11 19:18:15 +02:00 · 2017-04-11 19:18:15 +02:00 · d06f39f67d
parent 9ddd1d7d40
commit d06f39f67d
1 changed files with 1 additions and 0 deletions
--- a/src/frontend/device.c
+++ b/src/frontend/device.c
@ -1164,6 +1164,7 @@ com_alter_common(wordlist *wl, int do_model)
                wl = wl->wl_next;
                step = -1;
                wl2 = wlin;
+                wl = NULL;
            } else if (strlen(argument) > 1) {
                wl2 = wl_cons(copy_substring(argument, eqptr),
                              wl_cons(copy("="),