COMP: Uninitialized scalar field

Member data were not initialized in constructor nor in any
functions that it calls.

Change-Id: I65d95a5c37858e089b06db99d69ab42ca7850178
COMP: Unused pointer value

Pointer returned from a function was never used

Change-Id: I17fbf235ef717b269e0977581b62a129e398d255
Merge topic 'Coverity_FEMConstructors'

229431d2 COMP: Uninitialized scalar field
Merge topic 'Coverity_UnusedPointerValue'

61ec8bcf COMP: Unused pointer value