Properly check return type of DH_compute_key()

It returns -1 on error, not 0.

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>
MR #1231

(cherry picked from commit d6e92c0bd6c36fc68291e79ef5753fd7f0420695)

diff --git a/crypto/dh/dhtest.c b/crypto/dh/dhtest.c
index c9dd76bc75e17582c53a78786be7802dd17f36a0..6fe8ff4c0c49661cd8a4ace09f2a10eb91df4816 100644 (file)
--- a/crypto/dh/dhtest.c
+++ b/crypto/dh/dhtest.c
@@ -533,9 +533,9 @@ static int run_rfc5114_tests(void)
          * Work out shared secrets using both sides and compare with expected
          * values.
          */
-        if (!DH_compute_key(Z1, dhB->pub_key, dhA))
+        if (DH_compute_key(Z1, dhB->pub_key, dhA) == -1)
             goto bad_err;
-        if (!DH_compute_key(Z2, dhA->pub_key, dhB))
+        if (DH_compute_key(Z2, dhA->pub_key, dhB) == -1)
             goto bad_err;
 
         if (memcmp(Z1, td->Z, td->Z_len))