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913613da66
clang's static analyze reports a use-after-free in
__cil_expr_to_string(), when __cil_expr_to_string_helper() does not
modify its third parameter (variable s1 here) in this loop:
for (curr = curr->next; curr; curr = curr->next) {
__cil_expr_to_string_helper(curr, flavor, &s1);
cil_asprintf(&c2, "%s %s", c1, s1);
free(c1);
free(s1);
c1 = c2;
}
Silence this warning by making sure s1 is always NULL at the beginning
of every iteration of the loop.
Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
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