perf parse: Add a deep delete for parse event terms

Add a parse_events_term deep delete function so that owned strings and
arrays are freed.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: clang-built-linux@googlegroups.com
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191030223448.12930-10-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 13 insertions, 3 deletions

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a0a80f4e7038..6d18ff9bce49 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2812,6 +2812,18 @@ int parse_events_term__clone(struct parse_events_term **new,
 	return new_term(new, &temp, str, 0);
 }
 
+void parse_events_term__delete(struct parse_events_term *term)
+{
+	if (term->array.nr_ranges)
+		zfree(&term->array.ranges);
+
+	if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
+		zfree(&term->val.str);
+
+	zfree(&term->config);
+	free(term);
+}
+
 int parse_events_copy_term_list(struct list_head *old,
 				 struct list_head **new)
 {
@@ -2842,10 +2854,8 @@ void parse_events_terms__purge(struct list_head *terms)
 	struct parse_events_term *term, *h;
 
 	list_for_each_entry_safe(term, h, terms, list) {
-		if (term->array.nr_ranges)
-			zfree(&term->array.ranges);
 		list_del_init(&term->list);
-		free(term);
+		parse_events_term__delete(term);
 	}
 }