[Coverity CID: 183480] Null pointer dereferences in /tests/net/checksum_offload/src/main.c

[Shilpashree3lc-zz]

Static code scan issues seen in File: /tests/net/checksum_offload/src/main.c
Category: Null pointer dereferences
Function: recv_cb_offload_enabled
Component: Tests
CID: 183480
Please fix or provide comments to square it off in coverity in the link: https://scan9.coverity.com/reports.htm#v32951/p12996

[jukkar]

Already fixed by commit d76cc48