Fix: initialize the cur_event variable before using it

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

diff --git a/src/bin/lttng/commands/list.c b/src/bin/lttng/commands/list.c
index 7a35258b4b9d4ef2db48442210e8fefc61f716b3..418fccf7c9102387b0c7ede6a74c36ed6d569634 100644 (file)
--- a/src/bin/lttng/commands/list.c
+++ b/src/bin/lttng/commands/list.c
@@ -67,34 +67,6 @@ static struct poptOption long_options[] = {
        {0, 0, 0, 0, 0, 0, 0}
 };
 
-/*
- * usage
- */
-static void usage(FILE *ofp)
-{
-       fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [SESSION OPTIONS]]\n");
-       fprintf(ofp, "\n");
-       fprintf(ofp, "With no arguments, list available tracing session(s)\n");
-       fprintf(ofp, "\n");
-       fprintf(ofp, "Without a session, -k lists available kernel events\n");
-       fprintf(ofp, "Without a session, -u lists available userspace events\n");
-       fprintf(ofp, "\n");
-       fprintf(ofp, "  -h, --help              Show this help\n");
-       fprintf(ofp, "      --list-options      Simple listing of options\n");
-       fprintf(ofp, "  -k, --kernel            Select kernel domain\n");
-       fprintf(ofp, "  -u, --userspace         Select user-space domain.\n");
-       fprintf(ofp, "  -j, --jul               Apply for Java application using JUL\n");
-       fprintf(ofp, "  -l, --log4j             Apply for Java application using LOG4J\n");
-       fprintf(ofp, "  -p, --python            Apply for Python application using logging\n");
-       fprintf(ofp, "  -f, --fields            List event fields.\n");
-       fprintf(ofp, "      --syscall           List available system calls.\n");
-       fprintf(ofp, "\n");
-       fprintf(ofp, "Session Options:\n");
-       fprintf(ofp, "  -c, --channel NAME      List details of a channel\n");
-       fprintf(ofp, "  -d, --domain            List available domain(s)\n");
-       fprintf(ofp, "\n");
-}
-
 /*
  * Get command line from /proc for a specific pid.
  *
@@ -649,6 +621,8 @@ static int mi_list_ust_event_fields(struct lttng_event_field *fields, int count,
        int event_element_open = 0;
        struct lttng_event cur_event;
 
+       memset(&cur_event, 0, sizeof(cur_event));
+
        /* Open domains element */
        ret = mi_lttng_domains_open(writer);
        if (ret) {
@@ -1726,7 +1700,6 @@ int cmd_list(int argc, const char **argv)
        memset(&domain, 0, sizeof(domain));
 
        if (argc < 1) {
-               usage(stderr);
                ret = CMD_ERROR;
                goto end;
        }
@@ -1746,7 +1719,6 @@ int cmd_list(int argc, const char **argv)
                        list_cmd_options(stdout, long_options);
                        goto end;
                default:
-                       usage(stderr);
                        ret = CMD_UNDEFINED;
                        goto end;
                }