rpcrt4: Don't crash with a NULL binding handle in RpcBindingFree.

[Rob Shearman]

---
 dlls/rpcrt4/rpc_binding.c |    7 +++++--
 dlls/rpcrt4/tests/rpc.c   |   12 ++++++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

Part of fix for bug 4770. Tested on XP.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0003-rpcrt4-Don-t-crash-with-a-NULL-binding-handle-in-Rpc.patch
Type: text/x-patch
Size: 1365 bytes
Desc: not available
URL: <http://www.winehq.org/pipermail/wine-patches/attachments/20091116/5cd71041/attachment.bin>