diff --git a/dlls/ole32/hglobalstream.c b/dlls/ole32/hglobalstream.c
index 99077026efc..286739b165f 100644
--- a/dlls/ole32/hglobalstream.c
+++ b/dlls/ole32/hglobalstream.c
@@ -626,6 +626,7 @@ HRESULT WINAPI HGLOBALStreamImpl_SetSize(
 				     ULARGE_INTEGER  libNewSize)   /* [in] */
 {
   HGLOBALStreamImpl* const This=(HGLOBALStreamImpl*)iface;
+  HGLOBAL supportHandle;
 
   TRACE("(%p, %ld)\n", iface, libNewSize.s.LowPart);
 
@@ -641,10 +642,12 @@ HRESULT WINAPI HGLOBALStreamImpl_SetSize(
   /*
    * Re allocate the HGlobal to fit the new size of the stream.
    */
-  This->supportHandle = GlobalReAlloc(This->supportHandle,
-				      libNewSize.s.LowPart,
-				      0);
+  supportHandle = GlobalReAlloc(This->supportHandle, libNewSize.s.LowPart, 0);
 
+  if (supportHandle == 0)
+    return STG_E_MEDIUMFULL;
+
+  This->supportHandle = supportHandle;
   This->streamSize.s.LowPart = libNewSize.s.LowPart;
 
   return S_OK;
diff --git a/dlls/ole32/memlockbytes.c b/dlls/ole32/memlockbytes.c
index 4c9a6d6f012..ce5bd0398f2 100644
--- a/dlls/ole32/memlockbytes.c
+++ b/dlls/ole32/memlockbytes.c
@@ -545,6 +545,7 @@ HRESULT WINAPI HGLOBALLockBytesImpl_SetSize(
       ULARGE_INTEGER  libNewSize)   /* [in] */
 {
   HGLOBALLockBytesImpl* const This=(HGLOBALLockBytesImpl*)iface;
+  HGLOBAL supportHandle;
 
   /*
    * As documented.
@@ -558,13 +559,12 @@ HRESULT WINAPI HGLOBALLockBytesImpl_SetSize(
   /*
    * Re allocate the HGlobal to fit the new size of the stream.
    */
-  This->supportHandle = GlobalReAlloc(This->supportHandle,
-                                      libNewSize.s.LowPart,
-                                      0);
+  supportHandle = GlobalReAlloc(This->supportHandle, libNewSize.s.LowPart, 0);
 
-  if (This->supportHandle == 0)
+  if (supportHandle == 0)
     return STG_E_MEDIUMFULL;
 
+  This->supportHandle = supportHandle;
   This->byteArraySize.s.LowPart = libNewSize.s.LowPart;
 
   return S_OK;
diff --git a/dlls/ole32/memlockbytes16.c b/dlls/ole32/memlockbytes16.c
index c48fb63dcf2..5c0f908ca1a 100644
--- a/dlls/ole32/memlockbytes16.c
+++ b/dlls/ole32/memlockbytes16.c
@@ -469,6 +469,7 @@ HRESULT WINAPI HGLOBALLockBytesImpl16_SetSize(
       ULARGE_INTEGER  libNewSize)   /* [in] */
 {
   HGLOBALLockBytesImpl16* const This=(HGLOBALLockBytesImpl16*)iface;
+  HGLOBAL16 supportHandle;
 
   TRACE("(%p,%ld)\n",This,libNewSize.s.LowPart);
   /*
@@ -483,13 +484,12 @@ HRESULT WINAPI HGLOBALLockBytesImpl16_SetSize(
   /*
    * Re allocate the HGlobal to fit the new size of the stream.
    */
-  This->supportHandle = GlobalReAlloc16(This->supportHandle,
-                                      libNewSize.s.LowPart,
-                                      0);
+  supportHandle = GlobalReAlloc16(This->supportHandle, libNewSize.s.LowPart, 0);
 
-  if (This->supportHandle == 0)
+  if (supportHandle == 0)
     return STG_E_MEDIUMFULL;
 
+  This->supportHandle = supportHandle;
   This->byteArraySize.s.LowPart = libNewSize.s.LowPart;
 
   return S_OK;