[foxy] Fix memory leak that wait_set might be not destoryed in some case. (#423)#426

Merged

ivanpauno merged 1 commit intoros2:foxyfrom iuhilnehc-ynos:topic-foxy-backport-fix-memory-leak

Aug 25, 2020

+5-5

Commits on Aug 25, 2020

Fix memory leak that wait_set might be not destoryed in some case. (ros2#423 )
Chen Lihui
committed