coverity#1209589: Dereference after null check

Change-Id: I75d26707a7a3c0febef11b7e1c2218b8abfb7832
coverity#1202763: Unchecked return value

Change-Id: I82d098f269bae2f4deb7e997b03e4267e6a86bea
coverity#1202762: Unchecked return value

Change-Id: Ic69a6507df5444175b6aba4de01ca94d9a28be09
coverity#982182: Unchecked return value

Change-Id: I5a1820339ea598a606c46a1e03cd296fe81ef22f
coverity#982181: Unchecked return value

Change-Id: Idcac7155b9cd3ee94c3ed773a0e6e7f24a48d47a
coverity#735324: Unchecked return value

Change-Id: I7d6dcf0f64be944df1a94db27d1ee86f1bf2229c