auth: properly return error of cephx_calc_client_server_challenge

Signed-off-by: Yan, Zheng <zyan@redhat.com>

diff --git a/src/auth/cephx/CephxProtocol.cc b/src/auth/cephx/CephxProtocol.cc
index f57f06358644dd53b1710d44445835870cd07c22..f2a00dd75a05d12a2d377c9028b55b7358c9efa3 100644 (file)
--- a/src/auth/cephx/CephxProtocol.cc
+++ b/src/auth/cephx/CephxProtocol.cc
@@ -25,14 +25,13 @@
 
 
 void cephx_calc_client_server_challenge(CephContext *cct, CryptoKey& secret, uint64_t server_challenge, 
-                 uint64_t client_challenge, uint64_t *key, std::string &ret)
+                 uint64_t client_challenge, uint64_t *key, std::string &error)
 {
   CephXChallengeBlob b;
   b.server_challenge = server_challenge;
   b.client_challenge = client_challenge;
 
   bufferlist enc;
-  std::string error;
   if (encode_encrypt(cct, b, secret, enc, error))
     return;