perf parse-events: Use get/put_events_file()
Instead of accessing the trace_events_path variable directly, that may
not have been properly initialized wrt detecting where tracefs is
mounted.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-id7hzn1ydgkxbumeve5wapqz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 6829dd4..6d57d70 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1328,7 +1328,7 @@ static int count_tracepoints(void)
TEST_ASSERT_VAL("Can't open events dir", events_dir);
while ((events_ent = readdir(events_dir))) {
- char sys_path[PATH_MAX];
+ char *sys_path;
struct dirent *sys_ent;
DIR *sys_dir;
@@ -1339,8 +1339,8 @@ static int count_tracepoints(void)
|| !strcmp(events_ent->d_name, "header_page"))
continue;
- scnprintf(sys_path, PATH_MAX, "%s/%s",
- tracing_events_path, events_ent->d_name);
+ sys_path = get_events_file(events_ent->d_name);
+ TEST_ASSERT_VAL("Can't get sys path", sys_path);
sys_dir = opendir(sys_path);
TEST_ASSERT_VAL("Can't open sys dir", sys_dir);
@@ -1356,6 +1356,7 @@ static int count_tracepoints(void)
}
closedir(sys_dir);
+ put_events_file(sys_path);
}
closedir(events_dir);