parse-events: Fix a possible memory leak

If event_read_fields failed in the middle, each member of
struct format_field should be freed also.

Link: http://lkml.kernel.org/r/1333940074-19052-6-git-send-email-namhyung.kim@lge.com

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/parse-events.c b/parse-events.c
index 9c6d311..94b0ac2 100644
--- a/parse-events.c
+++ b/parse-events.c
@@ -1433,8 +1433,11 @@
 fail:
 	free_token(token);
 fail_expect:
-	if (field)
+	if (field) {
+		free(field->type);
+		free(field->name);
 		free(field);
+	}
 	return -1;
 }