[edk2-devel] [PATCH v2] OvmfPkg/XenBusDxe: Close XenIoProtocol openned by children

[Anthony PERARD]

In XenBusDxe, the XenBusAddDevice() opens the gXenIoProtocolGuid on
behalf of child controllers. It is never closed and prevents us from
uninstalling the protocol.

Close it where we stop all the children in XenBusDxe->Stop().

Signed-off-by: Anthony PERARD <anthony.perard at citrix.com>
Reviewed-by: Laszlo Ersek <lersek at redhat.com>
---
 OvmfPkg/XenBusDxe/XenBusDxe.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/OvmfPkg/XenBusDxe/XenBusDxe.c b/OvmfPkg/XenBusDxe/XenBusDxe.c
index 0e63707f50..7c07a96650 100644
--- a/OvmfPkg/XenBusDxe/XenBusDxe.c
+++ b/OvmfPkg/XenBusDxe/XenBusDxe.c
@@ -453,6 +453,10 @@ XenBusDxeDriverBindingStop (
       continue;

     }

 

+    Status = gBS->CloseProtocol (Dev->ControllerHandle, &gXenIoProtocolGuid,

+                    Dev->This->DriverBindingHandle, ChildData->Handle);

+    ASSERT_EFI_ERROR (Status);

+

     Status = gBS->UninstallMultipleProtocolInterfaces (

                ChildData->Handle,

                &gEfiDevicePathProtocolGuid, ChildData->DevicePath,

-- 
Anthony PERARD


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