MdeModulePkg/Usb: Adjust TPL to not block async transfer during usb enum.

[mirror_edk2.git] / MdeModulePkg / Bus / Usb / UsbMassStorageDxe / UsbMassImpl.c

diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c
index be11cc78fefa77eba99fb4d76979c660ddee8085..9d1bb25fb39d630b73ae4bd9a7c0e8f1e53ed2e6 100644 (file)
--- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c
+++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c
@@ -1,7 +1,7 @@
 /** @file\r
   USB Mass Storage Driver that manages USB Mass Storage Device and produces Block I/O Protocol.\r
 \r
-Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -63,7 +63,7 @@ UsbMassReset (
   // Raise TPL to TPL_NOTIFY to serialize all its operations\r
   // to protect shared data structures.\r
   //\r
-  OldTpl  = gBS->RaiseTPL (TPL_NOTIFY);\r
+  OldTpl  = gBS->RaiseTPL (TPL_CALLBACK);\r
 \r
   UsbMass = USB_MASS_DEVICE_FROM_BLOCK_IO (This);\r
   Status  = UsbMass->Transport->Reset (UsbMass->Context, ExtendedVerification);\r
@@ -117,7 +117,7 @@ UsbMassReadBlocks (
   // Raise TPL to TPL_NOTIFY to serialize all its operations\r
   // to protect shared data structures.\r
   //\r
-  OldTpl  = gBS->RaiseTPL (TPL_NOTIFY);\r
+  OldTpl  = gBS->RaiseTPL (TPL_CALLBACK);\r
   UsbMass = USB_MASS_DEVICE_FROM_BLOCK_IO (This);\r
   Media   = &UsbMass->BlockIoMedia;\r
 \r
@@ -233,7 +233,7 @@ UsbMassWriteBlocks (
   // Raise TPL to TPL_NOTIFY to serialize all its operations\r
   // to protect shared data structures.\r
   //\r
-  OldTpl  = gBS->RaiseTPL (TPL_NOTIFY);\r
+  OldTpl  = gBS->RaiseTPL (TPL_CALLBACK);\r
   UsbMass = USB_MASS_DEVICE_FROM_BLOCK_IO (This);\r
   Media   = &UsbMass->BlockIoMedia;\r
 \r