[DTV00857290][[DTV][Coverity Scanned Code Defect] 15367: Out-of-bounds write]

[Description]
Fix coverity defects under mgmt/

Fix "Dereference before null check" issues.

[Related CIDs]
CID361765, CID361763

Change-Id: Ic48ff770417d78945852a676c7dc0a68b3d201ae
CR-Id: DTV00857290
Signed-off-by: Awk Jiang <awk.jiang@mediatek.com>
Feature: misc
(cherry picked from commit c1a990ef83c5ffa96d045286ce394e80b8850dcb)
2 files changed