parse_kconfig: fix SIGSEGV caused by wrong approach to expression negation

diff --git a/scripts/parse_kconfig/cnfexpr.c b/scripts/parse_kconfig/cnfexpr.c
index 2a22a3c7acb8237070fe2b6171a96caf3fe4ce3d..c9151bf13a58b89ab27f55807c31461369190a16 100644 (file)
--- a/scripts/parse_kconfig/cnfexpr.c
+++ b/scripts/parse_kconfig/cnfexpr.c
@@ -151,9 +151,7 @@ struct cnfexpr *cnf_eql(struct symlist *sl, bool not, struct symbol *sym1,
         return fls;
     }
     if (!strcmp(sym2->name, "n")) {
-        struct cnfexpr *w = cnf_sym(sl, not, sym1);
-        w->exprs[0][0] *= -1;
-        return w;
+        return cnf_sym(sl, !not, sym1);
     }
     if (!strcmp(sym2->name, "y")) {
         return cnf_sym(sl, not, sym1);