Add a bit of defensive programming

svn path=/trunk/; revision=19283

diff --git a/reactos/services/dhcp/adapter.c b/reactos/services/dhcp/adapter.c
index 58c5da3..f6ee86b 100644 (file)
--- a/reactos/services/dhcp/adapter.c
+++ b/reactos/services/dhcp/adapter.c
@@ -125,6 +125,7 @@ HKEY FindAdapterKey( PDHCP_ADAPTER Adapter ) {
             ( EnumKey, EnumKeysTop[i], "DriverDesc" );
 
         if( DriverDesc &&
+            RootDevice &&
             !strcmp( DriverDesc, Adapter->DhclientInfo.name ) ) {
             TargetKeyName =
                 malloc( strlen( TargetKeyNameStart ) +