Fix: clang llvm warnings

[lttng-tools.git] / src / bin / lttng / commands / add_context.c

diff --git a/src/bin/lttng/commands/add_context.c b/src/bin/lttng/commands/add_context.c
index e499ef3d37894eb3aababec3d4ad59c18abbd964..38708fce15dd784a2e0ae97700d7041793fd885d 100644 (file)
--- a/src/bin/lttng/commands/add_context.c
+++ b/src/bin/lttng/commands/add_context.c
@@ -1,19 +1,18 @@
 /*
  * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; only version 2
- * of the License.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2 only,
+ * as published by the Free Software Foundation.
  *
  * This program 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 General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #define _GNU_SOURCE
@@ -309,6 +308,7 @@ static void usage(FILE *ofp)
        fprintf(ofp, "will be added to all events and all channels.\n");
        fprintf(ofp, "Otherwise the context will be added only to the channel (-c)\n");
        fprintf(ofp, "and/or event (-e) indicated.\n");
+       fprintf(ofp, "Exactly one domain (-k/--kernel or -u/--userspace) must be specified.\n");
        fprintf(ofp, "\n");
        fprintf(ofp, "Options:\n");
        fprintf(ofp, "  -h, --help               Show this help\n");
@@ -390,7 +390,7 @@ static int add_context(char *session_name)
 
        /* Iterate over all the context types given */
        cds_list_for_each_entry(type, &ctx_type_list.head, list) {
-               context.ctx = type->opt->ctx_type;
+               context.ctx = (enum lttng_event_context_type) type->opt->ctx_type;
                if (context.ctx == LTTNG_EVENT_CONTEXT_PERF_COUNTER) {
                        context.u.perf_counter.type = type->opt->u.perf.type;
                        context.u.perf_counter.config = type->opt->u.perf.config;
@@ -534,6 +534,10 @@ int cmd_add_context(int argc, const char **argv)
 
        ret = add_context(session_name);
 
+       if (!opt_session_name) {
+               free(session_name);
+       }
+
 end:
        /* Cleanup allocated memory */
        cds_list_for_each_entry_safe(type, tmptype, &ctx_type_list.head, list) {