Avoid failed assertion in BN_DEBUG builds

diff --git a/crypto/bn/bn_gf2m.c b/crypto/bn/bn_gf2m.c
index 70770a25365ec85c8543f121f0eb3e121f6e9d85..2cd93ddc76cf3bdadccd5640606fa5ceb6f82ba0 100644 (file)
--- a/crypto/bn/bn_gf2m.c
+++ b/crypto/bn/bn_gf2m.c
@@ -644,6 +644,9 @@ int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
        ret = 1;
 
 err:
+#ifdef BN_DEBUG /* BN_CTX_end would complain about the expanded form */
+        bn_correct_top(c);
+#endif
        BN_CTX_end(ctx);
        return ret;
        }