Bug 1308847 - coverity check ssl3_config_match_init return value, r=mt

Differential Revision: https://nss-dev.phacility.com/D75

--HG--
extra : rebase_source : 0a6d8e52b20c9823c01ac904cf08317cc76db0c5
extra : amend_source : 543e64efe268f8eb2e82ca7f2354dbd30ce60df4

lib/ssl/ssl3con.c

@@ -6625,7 +6625,12 @@ ssl3_HandleServerHello(sslSocket *ss, SSL3Opaque *b, PRUint32 length)
     if (temp < 0) {
         goto loser; /* alert has been sent */
     }
-    ssl3_config_match_init(ss);
+    i = ssl3_config_match_init(ss);
+    PORT_Assert(i > 0);
+    if (i <= 0) {
+        errCode = PORT_GetError();
+        goto loser;
+    }
     for (i = 0; i < ssl_V3_SUITES_IMPLEMENTED; i++) {
         ssl3CipherSuiteCfg *suite = &ss->cipherSuites[i];
         if (temp == suite->cipher_suite) {