dbi utils: Don't keep invalid object address after closing DBI connections.

diff --git a/src/utils/dbi.c b/src/utils/dbi.c
index 26926183e4528a71dd0d495c10377d0c6adbfa67..d9bd3691391ad80a0728a2f9ac88c03033627fa4 100644 (file)
--- a/src/utils/dbi.c
+++ b/src/utils/dbi.c
@@ -284,8 +284,10 @@ sdb_dbi_client_connect(sdb_dbi_client_t *client)
        if ((! client) || (! client->driver) || (! client->database))
                return -1;
 
-       if (client->conn)
+       if (client->conn) {
                dbi_conn_close(client->conn);
+               client->conn = NULL;
+       }
 
        driver = dbi_driver_open(client->driver);
        if (! driver) {
@@ -332,6 +334,7 @@ sdb_dbi_client_connect(sdb_dbi_client_t *client)
                        sdb_error_log(SDB_LOG_ERR);
 
                        dbi_conn_close(client->conn);
+                       client->conn = NULL;
                        return -1;
                }
        }
@@ -340,6 +343,7 @@ sdb_dbi_client_connect(sdb_dbi_client_t *client)
                sdb_log(SDB_LOG_ERR, "dbi: failed to set option 'dbname': %s",
                                sdb_dbi_strerror(client->conn));
                dbi_conn_close(client->conn);
+               client->conn = NULL;
                return -1;
        }
 
@@ -347,6 +351,7 @@ sdb_dbi_client_connect(sdb_dbi_client_t *client)
                sdb_log(SDB_LOG_ERR, "dbi: failed to connect to database '%s': %s",
                                client->database, sdb_dbi_strerror(client->conn));
                dbi_conn_close(client->conn);
+               client->conn = NULL;
                return -1;
        }
        return 0;
@@ -467,6 +472,7 @@ sdb_dbi_client_destroy(sdb_dbi_client_t *client)
 
        if (client->conn)
                dbi_conn_close(client->conn);
+       client->conn = NULL;
 
        if (client->options)
                sdb_dbi_options_destroy(client->options);