iphlpapi: Avoid uninitialized variable warning in build_tcp_table.

[Gerald Pfeifer]

I noticed this has now been implemented for FreeBSD -- congratulations,
Charles!

Right now this trigger a new warnings with current versions of GCC which
the patch below addresses.

Gerald

---
 dlls/iphlpapi/ipstats.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dlls/iphlpapi/ipstats.c b/dlls/iphlpapi/ipstats.c
index 962d421..3b12bc1 100644
--- a/dlls/iphlpapi/ipstats.c
+++ b/dlls/iphlpapi/ipstats.c
@@ -2221,7 +2221,10 @@ DWORD build_tcp_table( TCP_TABLE_CLASS class, void **tablep, BOOL order, HANDLE
             goto done;
         }
 
-        if (class >= TCP_TABLE_OWNER_PID_LISTENER) pMap = get_pid_map( &NumEntries );
+        if (class >= TCP_TABLE_OWNER_PID_LISTENER) 
+            pMap = get_pid_map( &NumEntries );
+        else
+            pMap = NULL;
 
         /* Might be nothing here; first entry is just a header it seems */
         if (Len <= sizeof (struct xinpgen)) goto done;
-- 
1.8.3.4