Fix assertion failure

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>

diff --git a/src/xenbus/gnttab.c b/src/xenbus/gnttab.c
index 5e00dbc3a1cbaa33a1e4ec75034219eec9804046..730bbac8cd882f8a58953d8a06554d603cda091d 100644 (file)
--- a/src/xenbus/gnttab.c
+++ b/src/xenbus/gnttab.c
@@ -633,6 +633,7 @@ fail4:
     Context->CacheInterface = NULL;
 
     RangeSetTeardown(Context->RangeSet);
+    Context->RangeSet = NULL;
 
 fail3:
     Error("fail3\n");
@@ -688,7 +689,9 @@ GnttabTeardown(
     Context->CacheInterface = NULL;
 
     __GnttabShrink(Context);
+
     RangeSetTeardown(Context->RangeSet);
+    Context->RangeSet = NULL;
 
     Context->Entry = NULL;