The maintenance method check_for_mcast_flood_reports() was not checking
if that instance of the maintenance task has a valid lock before trying
to execute a transaction.
This patch adds such check so instances of the maintenance task without
a valid lock will just return.
Change-Id: I791026058b37f06d1a19b5fb6823b9dbb2a3eca5
Closes-Bug: #1927077
Signed-off-by: Lucas Alvares Gomes <lucasagomes@gmail.com>
(cherry picked from commit 317407fe61)
2e49c2b743