1 files changed, 2 insertions, 3 deletions

diff --git a/src/lib/libcrypto/bn/bn_gf2m.c b/src/lib/libcrypto/bn/bn_gf2m.c
index d83ae291ec..62395f60eb 100644
--- a/src/lib/libcrypto/bn/bn_gf2m.c
+++ b/src/lib/libcrypto/bn/bn_gf2m.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bn_gf2m.c,v 1.21 2016/03/12 21:44:11 bcook Exp $ */
+/* $OpenBSD: bn_gf2m.c,v 1.22 2016/09/03 14:37:00 bcook Exp $ */
 /* ====================================================================
  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  *
@@ -443,8 +443,7 @@ BN_GF2m_mod_arr(BIGNUM *r, const BIGNUM *a, const int p[])
                         d0 = p[k] % BN_BITS2;
                         d1 = BN_BITS2 - d0;
                         z[n] ^= (zz << d0);
-                        tmp_ulong = zz >> d1;
-                        if (d0 && tmp_ulong)
+                        if (d0 && (tmp_ulong = zz >> d1))
                                 z[n + 1] ^= tmp_ulong;
                 }