commit d8236097dad88e9d98482d91753241cd967d81cc
author Wei Wang <wvw@google.com> Mon Mar 20 15:13:05 2017 -0700
committer Wei Wang <wvw@google.com> Mon Mar 20 22:13:22 2017 -0700
tree e4e94dcc44f84ccf6c52124e758df2df55cede7c
parent dfcf62694372d925dbad14673cba927b5f45b1b0

libcutils: only change cgroup when fd is initialized

This is to avoid failues on setting non-exist cgroup

Bug: 34193533
Test: on marlin
Change-Id: I619dcba332fda9ec421df811745cf10311beddd3

libcutils/sched_policy.cpp

diff --git a/libcutils/sched_policy.cpp b/libcutils/sched_policy.cpp
index 7e3ad59..40144cf 100644
--- a/libcutils/sched_policy.cpp
+++ b/libcutils/sched_policy.cpp
@@ -464,7 +464,7 @@
             break;
         }
 
-        if (add_tid_to_cgroup(tid, fd) != 0) {
+        if (fd > 0 && add_tid_to_cgroup(tid, fd) != 0) {
             if (errno != ESRCH && errno != ENOENT)
                 return -errno;
         }