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-rw-r--r--dom/plugins/ipc/PluginInstanceChild.cpp13
1 files changed, 8 insertions, 5 deletions
diff --git a/dom/plugins/ipc/PluginInstanceChild.cpp b/dom/plugins/ipc/PluginInstanceChild.cpp
index af9db9103..3f2cdbc13 100644
--- a/dom/plugins/ipc/PluginInstanceChild.cpp
+++ b/dom/plugins/ipc/PluginInstanceChild.cpp
@@ -310,9 +310,10 @@ PluginInstanceChild::InternalGetNPObjectForValue(NPNVariable aValue,
switch (aValue) {
case NPNVWindowNPObject:
if (!(actor = mCachedWindowActor)) {
+ result = NPERR_GENERIC_ERROR;
PPluginScriptableObjectChild* actorProtocol;
- CallNPN_GetValue_NPNVWindowNPObject(&actorProtocol, &result);
- if (result == NPERR_NO_ERROR) {
+ if (CallNPN_GetValue_NPNVWindowNPObject(&actorProtocol, &result) &&
+ result == NPERR_NO_ERROR) {
actor = mCachedWindowActor =
static_cast<PluginScriptableObjectChild*>(actorProtocol);
NS_ASSERTION(actor, "Null actor!");
@@ -324,10 +325,10 @@ PluginInstanceChild::InternalGetNPObjectForValue(NPNVariable aValue,
case NPNVPluginElementNPObject:
if (!(actor = mCachedElementActor)) {
+ result = NPERR_GENERIC_ERROR;
PPluginScriptableObjectChild* actorProtocol;
- CallNPN_GetValue_NPNVPluginElementNPObject(&actorProtocol,
- &result);
- if (result == NPERR_NO_ERROR) {
+ if (CallNPN_GetValue_NPNVPluginElementNPObject(&actorProtocol, &result) &&
+ result == NPERR_NO_ERROR) {
actor = mCachedElementActor =
static_cast<PluginScriptableObjectChild*>(actorProtocol);
NS_ASSERTION(actor, "Null actor!");
@@ -338,6 +339,7 @@ PluginInstanceChild::InternalGetNPObjectForValue(NPNVariable aValue,
break;
default:
+ result = NPERR_GENERIC_ERROR;
NS_NOTREACHED("Don't know what to do with this value type!");
}
@@ -434,6 +436,7 @@ PluginInstanceChild::NPN_GetValue(NPNVariable aVar,
case NPNVWindowNPObject: // Intentional fall-through
case NPNVPluginElementNPObject: {
NPObject* object;
+ *((NPObject**)aValue) = nullptr;
NPError result = InternalGetNPObjectForValue(aVar, &object);
if (result == NPERR_NO_ERROR) {
*((NPObject**)aValue) = object;