raise TPL to TPL_CALLBACK level at DriverBindingStart() for all usb-related modules, which prevent DriverBindingStop() from being invoked when DriverBindingStart() runs.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10460 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 7 insertions, 1 deletions

diff --git a/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/UsbMouseAbsolutePointer.c b/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/UsbMouseAbsolutePointer.c
index 35be8b0..2f3cf9a 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;

 }