ipaccess: The proxy code checked the array but not the element

Array compared against 0 (NO_EFFECT)
array_null: Comparing an array to null is not useful: "ipbc->bsc_rsl_conn".

Fixes: Coverity CID 1040718
1 file changed
tree: 6d09c9cc2e9ffd54af748345fb3793ac5f459c01
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README