Fix reading of uninitialized pointer
Fix reading of uninitialized pointer

As reported by Coverity Scan

tbeu/matio,tbeu/matio,MaartenBent/matio,NJannasch/matio,NJannasch/matio,MaartenBent/matio,MaartenBent/matio,MaartenBent/matio,tbeu/matio,tbeu/matio