Jacek Caban : jscript: Set output to undefined in jsval_copy on failure.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: e641469f9ffb48a33712147a884f3f1f071dbd40
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=e641469f9ffb48a33712147a884f3f1f071dbd40

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Thu Jul 28 18:45:13 2016 +0200

jscript: Set output to undefined in jsval_copy on failure.

Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/jscript/dispex.c  | 4 +---
 dlls/jscript/jsutils.c | 8 ++++++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/dlls/jscript/dispex.c b/dlls/jscript/dispex.c
index 538219e..cbfcc85 100644
--- a/dlls/jscript/dispex.c
+++ b/dlls/jscript/dispex.c
@@ -491,10 +491,8 @@ static HRESULT prop_put(jsdisp_t *This, dispex_prop_t *prop, jsval_t val, IServi
     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_jsval(val));
 
     hres = jsval_copy(val, &prop->u.val);
-    if(FAILED(hres)) {
-        prop->u.val = jsval_undefined();
+    if(FAILED(hres))
         return hres;
-    }
 
     if(This->builtin_info->on_put)
         This->builtin_info->on_put(This, prop->name);
diff --git a/dlls/jscript/jsutils.c b/dlls/jscript/jsutils.c
index dd79510..e7100ba 100644
--- a/dlls/jscript/jsutils.c
+++ b/dlls/jscript/jsutils.c
@@ -212,13 +212,17 @@ static HRESULT jsval_variant(jsval_t *val, VARIANT *var)
 
     __JSVAL_TYPE(*val) = JSV_VARIANT;
     __JSVAL_VAR(*val) = v = heap_alloc(sizeof(VARIANT));
-    if(!v)
+    if(!v) {
+        *val = jsval_undefined();
         return E_OUTOFMEMORY;
+    }
 
     V_VT(v) = VT_EMPTY;
     hres = VariantCopy(v, var);
-    if(FAILED(hres))
+    if(FAILED(hres)) {
+        *val = jsval_undefined();
         heap_free(v);
+    }
     return hres;
 }