Move to kernel style SPDX license identifiers

[lttng-tools.git] / src / lib / lttng-ctl / lttng-ctl.c

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index 88daf45aa40140bcc38715271cd4dd655c6c3a2e..4e49120732da5f5753e7322c5e60d99163e5881c 100644 (file)
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -4,20 +4,10 @@
  * Linux Trace Toolkit Control Library
  *
  * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
- * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #define _LGPL_SOURCE
@@ -2943,7 +2933,7 @@ int lttng_list_tracker_pids(struct lttng_handle *handle,
                int *_enabled, int32_t **_pids, size_t *_nr_pids)
 {
        struct lttng_tracker_ids *ids = NULL;
-       size_t nr_ids = 0;
+       unsigned int nr_ids = 0;
        int *pids = NULL;
        int ret = 0, i;
        enum lttng_tracker_id_status status;
@@ -2954,7 +2944,11 @@ int lttng_list_tracker_pids(struct lttng_handle *handle,
                return ret;
        }
 
-       nr_ids = lttng_tracker_ids_get_count(ids);
+       status = lttng_tracker_ids_get_count(ids, &nr_ids);
+       if (status != LTTNG_TRACKER_ID_STATUS_OK) {
+               ret = -LTTNG_ERR_INVALID;
+               goto end;
+       }
 
        if (nr_ids == 1) {
                id = lttng_tracker_ids_get_at_index(ids, 0);
@@ -3130,7 +3124,7 @@ static int lttng_track_untrack_id(struct lttng_handle *handle,
 {
        int ret;
        struct lttcomm_session_msg lsm;
-       const char *var_data;
+       const char *var_data = NULL;
        size_t var_data_len = 0;
        int value;
        enum lttng_tracker_id_status status;