1 files changed, 7 insertions, 1 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/UsbMouseAbsolutePointer.c b/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/UsbMouseAbsolutePointer.c
index 35be8b0397..2f3cf9aae2 100644
--- a/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/UsbMouseAbsolutePointer.c
+++ b/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/UsbMouseAbsolutePointer.c
@@ -149,7 +149,9 @@ USBMouseAbsolutePointerDriverBindingStart (
   UINT8                          PollingInterval;
   UINT8                          PacketSize;
   BOOLEAN                        Found;
+  EFI_TPL                        OldTpl;
 
+  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
   //
   // Open USB I/O Protocol
   //
@@ -162,7 +164,7 @@ USBMouseAbsolutePointerDriverBindingStart (
                   EFI_OPEN_PROTOCOL_BY_DRIVER                  
                   );
   if (EFI_ERROR (Status)) {
-    return Status;
+    goto ErrorExit1;
   }
   
   UsbMouseAbsolutePointerDevice = AllocateZeroPool (sizeof (USB_MOUSE_ABSOLUTE_POINTER_DEV));
@@ -324,6 +326,7 @@ USBMouseAbsolutePointerDriverBindingStart (
     FALSE
     );
 
+  gBS->RestoreTPL (OldTpl);
   return EFI_SUCCESS;
 
 //
@@ -348,6 +351,9 @@ ErrorExit:
     }
   }
 
+ErrorExit1:
+  gBS->RestoreTPL (OldTpl);
+
   return Status;
 }