sravan/system76-edk2
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raise TPL to TPL_CALLBACK level at DriverBindingStart() for all usb-related modules, which prevent DriverBindingStop() from being invoked when DriverBindingStart() runs.

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10460 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
erictian
2010-05-05 05:21:38 +00:00
parent b9d5a7f1dc
commit 15cc67e616
6 changed files with 45 additions and 12 deletions
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13
MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c
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@@ -833,7 +833,10 @@ USBMassDriverBindingStart (
UINT8 MaxLun;
EFI_STATUS Status;
EFI_USB_IO_PROTOCOL *UsbIo;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
Transport = NULL;
Context = NULL;
MaxLun = 0;
@@ -842,7 +845,7 @@ USBMassDriverBindingStart (
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "USBMassDriverBindingStart: UsbMassInitTransport (%r)\n", Status));
return Status;
goto Exit;
}
if (MaxLun == 0) {
//
@@ -867,7 +870,7 @@ USBMassDriverBindingStart (
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "USBMassDriverBindingStart: OpenDevicePathProtocol By Driver (%r)\n", Status));
return Status;
goto Exit;
}
Status = gBS->OpenProtocol (
@@ -887,7 +890,7 @@ USBMassDriverBindingStart (
This->DriverBindingHandle,
Controller
);
return Status;
goto Exit;
}
//
@@ -911,6 +914,8 @@ USBMassDriverBindingStart (
DEBUG ((EFI_D_ERROR, "USBMassDriverBindingStart: UsbMassInitMultiLun (%r) with Maxlun=%d\n", Status, MaxLun));
}
}
Exit:
gBS->RestoreTPL (OldTpl);
return Status;
}