From a5dfa16ba4acf1d8994f462b2b8c9ab4c4f147d2 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Wed, 25 Feb 2015 14:56:04 +0000
Subject: [PATCH] gentypes: make dispose function tolerate NULL

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---
 tools/libxl/gentypes.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/libxl/gentypes.py b/tools/libxl/gentypes.py
index afd4eeab03..00816c0aef 100644
--- a/tools/libxl/gentypes.py
+++ b/tools/libxl/gentypes.py
@@ -642,6 +642,7 @@ if __name__ == '__main__':
     for ty in [t for t in types if t.dispose_fn is not None and t.autogenerate_dispose_fn]:
         f.write("void %s(%s)\n" % (ty.dispose_fn, ty.make_arg("p")))
         f.write("{\n")
+        f.write("    if (!p) return;\n")
         f.write(libxl_C_type_dispose(ty, "p"))
         f.write("    memset(p, 0, sizeof(*p));\n")
         f.write("}\n")
-- 
2.39.5