Security and connectivity defects fix
Some minor defects (NULL checks and double frees) fixed.
Change-Id: I066a238a9379d45d1f377cc5a144c0bc0a97ccb7
Signed-off-by: Oleksii Beketov <ol.beketov@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/17039
Reviewed-by: Dmitriy Zhuravlev <d.zhuravlev@samsung.com>
Tested-by: jenkins-iotivity <jenkins@iotivity.org>
Reviewed-by: Randeep Singh <randeep.s@samsung.com>
Signed-off-by: Oleksii Beketov <ol.beketov@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/17319