need to return here to prevent segfault

[spencersevilla]

I recently encountered a strange situation where the UPF was given a junk packet and segfaulted. I am still investigating the cause of the junk packet (looks like encapsulation, might have more PRs later) but in the meantime, the segfault was caused at line 198 as a result of calling src_addr[k] when src_addr was never set.

I dont know the exact pfcp logic and am not clear if we should return NULL or OGS_ERROR. This seemed correct but I defer to your wisdom. On a related note, I am assuming/hoping that we should free the packet somewhere else along the line to avoid leaks?

[acetcom]

@spencersevilla

You made a good point. I've modified it a little to use 'continue' instead of 'return'.

Thank you so much!
Sukchan