tree d8d5f1b21531ba55c1e3f985cf0348f89bffa58a
parent 58aba059f5008f3f85b54834232383bf2ab34f62
author Holger Hans Peter Freyther <zecke@selfish.org> 1286402877 +0800
committer Holger Hans Peter Freyther <zecke@selfish.org> 1286402877 +0800

msc: Only unregister the fd if the fd value is valid.

This makes sure that someone can call bsc_msc_lost multiple times
even if there is no MSC connection. This makes sense as bsc_msc_lost
is public and be called from client code.