2 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 12c4341078f..45efb5db0d1 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -8,7 +8,7 @@
 
 static struct thread *thread__new(pid_t pid)
 {
-	struct thread *self = malloc(sizeof(*self));
+	struct thread *self = calloc(1, sizeof(*self));
 
 	if (self != NULL) {
 		self->pid = pid;
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 665d1f3dc97..32aea3c1c2a 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -7,6 +7,7 @@ struct thread {
 	struct rb_node		rb_node;
 	struct list_head	maps;
 	pid_t			pid;
+	char			shortname[3];
 	char			*comm;
 };