gtphub: fix possible NULL deref: don't print NULL tunnel

Fixes: coverity CID#158302
Change-Id: Ic500a3eb0c49393c7962a20e61eb57fd467208d3
1 file changed
tree: 2710f517f0c4780d4e4e9bf8ce9044b95f754ba8
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview
  6. .mailmap