BugLink: https://bugs.launchpad.net/bugs/1822271

[ Upstream commit 17407715 ]

genlmsg_reply can fail, so propagate its return code
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Juerg Haefliger <juerg.haefliger@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>