Extra memory duplication

Author: yatsukhnenko

redis_session.c

@@ -615,13 +615,10 @@ PS_CREATE_SID_FUNC(redis)
 
         int resp_len;
 #if (PHP_MAJOR_VERSION < 7)
-        char *full_session_key = redis_session_key(rpm, sid, strlen(sid), &resp_len);
+        pool->lock_status.session_key = redis_session_key(rpm, sid, strlen(sid), &resp_len);
 #else
-        char *full_session_key = redis_session_key(rpm, ZSTR_VAL(sid), ZSTR_LEN(sid), &resp_len);
+        pool->lock_status.session_key = redis_session_key(rpm, ZSTR_VAL(sid), ZSTR_LEN(sid), &resp_len);
 #endif
-        char *full_session_key_nt = estrndup(full_session_key, resp_len);
-        efree(full_session_key);
-        pool->lock_status.session_key = full_session_key_nt;
 
         if (lock_acquire(redis_sock, &pool->lock_status TSRMLS_CC) == SUCCESS) {
             return sid;