isl_output.c: print_qpolynomial_c: improve error handling

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>

diff --git a/isl_output.c b/isl_output.c
index a1feb7f..e9bc58f 100644 (file)
--- a/isl_output.c
+++ b/isl_output.c
@@ -1361,6 +1361,8 @@ static __isl_give isl_printer *print_qpolynomial_c(__isl_take isl_printer *p,
        }
        if (qp)
                p = upoly_print(qp->upoly, dim, qp->div, p, 0);
+       else
+               p = isl_printer_free(p);
        if (!isl_int_is_one(den)) {
                p = isl_printer_print_str(p, ")/");
                p = isl_printer_print_isl_int(p, den);