License cleanup: add SPDX GPL-2.0 license identifier to files with no license

[mirror_ubuntu-bionic-kernel.git] / tools / cgroup / cgroup_event_listener.c

diff --git a/tools/cgroup/cgroup_event_listener.c b/tools/cgroup/cgroup_event_listener.c
index 4eb5507205c981a3f59fc055700eb8f369cb5d79..3d70dc831a7667ca0b267bdf26207749eccac6bd 100644 (file)
--- a/tools/cgroup/cgroup_event_listener.c
+++ b/tools/cgroup/cgroup_event_listener.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cgroup_event_listener.c - Simple listener of cgroup events
  *