XFA: Restore early return if no FPDF_Page in FORM_DoPageAAction()

fpdfsdk/src/fpdfformfill.cpp

Index: fpdfsdk/src/fpdfformfill.cpp
diff --git a/fpdfsdk/src/fpdfformfill.cpp b/fpdfsdk/src/fpdfformfill.cpp
index a493c7fe21b229c3cc500a5d64dd7577ab537906..435f645642d0ef94c613bf3bc7bbf595fc7186fd 100644
--- a/fpdfsdk/src/fpdfformfill.cpp
+++ b/fpdfsdk/src/fpdfformfill.cpp
@@ -660,20 +660,18 @@ DLLEXPORT void STDCALL FORM_DoPageAAction(FPDF_PAGE page,
   if (pPageView) {
     CPDFDoc_Environment* pEnv = pSDKDoc->GetEnv();
     CPDFSDK_ActionHandler* pActionHandler = pEnv->GetActionHander();
-    CPDF_Dictionary* pPageDict = pPage->GetPDFPage()->m_pFormDict;
+    CPDF_Page* pPDFPage = pPage->GetPDFPage();
+    if (!pPDFPage)
+      return;
+    CPDF_Dictionary* pPageDict = pPDFPage->m_pFormDict;
     CPDF_AAction aa = pPageDict->GetDict(FX_BSTRC("AA"));
-
-    FX_BOOL bExistOAAction = FALSE;

[Lei Zhang, 2015/10/30 18:50:08]

Remember to merge this to master.

[Tom Sepez, 2015/10/30 18:58:42]

Acknowledged.

-    FX_BOOL bExistCAAction = FALSE;
     if (FPDFPAGE_AACTION_OPEN == aaType) {
-      bExistOAAction = aa.ActionExist(CPDF_AAction::OpenPage);
-      if (bExistOAAction) {
+      if (aa.ActionExist(CPDF_AAction::OpenPage)) {
         CPDF_Action action = aa.GetAction(CPDF_AAction::OpenPage);
         pActionHandler->DoAction_Page(action, CPDF_AAction::OpenPage, pSDKDoc);
       }
     } else {
-      bExistCAAction = aa.ActionExist(CPDF_AAction::ClosePage);
-      if (bExistCAAction) {
+      if (aa.ActionExist(CPDF_AAction::ClosePage)) {
         CPDF_Action action = aa.GetAction(CPDF_AAction::ClosePage);
         pActionHandler->DoAction_Page(action, CPDF_AAction::ClosePage, pSDKDoc);
       }