COV: Fixing coverty issue 1221674 (Explicit null dereferenced)
COV: Fixing coverty issue 1221674 (Explicit null dereferenced)

orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB