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fix null dereference crash in mothra

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jpathy 2013-09-24 15:50:35 -07:00
parent 62b3eea271
commit cafcffb1dc
1 changed files with 5 additions and 3 deletions
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2
sys/src/cmd/mothra/mothra.c
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@ -1016,11 +1016,13 @@ mothon(Www *w, int on)
plrtstr(&t->next, 0, 0, t->font, strdup("->"), PL_HOT, ap); plrtstr(&t->next, 0, 0, t->font, strdup("->"), PL_HOT, ap);
t->next->next = x; t->next->next = x;
} else { } else {
if(x) {
t->next = x->next; t->next = x->next;
x->next = nil; x->next = nil;
freetext(x); freetext(x);
} }
} }
}
updtext(w); updtext(w);
donecurs(); donecurs();
} }