X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FBus%2FUsb%2FUsbBusDxe%2FUsbEnumer.c;h=6b46e5c3ce4548ef91f249a29b394e9f3d31a015;hp=65eb2dd77ffa547a57f3381e3ab15083f6b5e843;hb=ecb575d9e65c9d52c17866eebba5f798f178effe;hpb=be0187bbbad2039b83b15aebf9352de27a9d3c00

diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c
index 65eb2dd77f..6b46e5c3ce 100644
--- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c
+++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c
@@ -288,18 +288,24 @@ UsbConnectDriver (
     // twisted TPL used. It should be no problem for us to connect
     // or disconnect at CALLBACK.
     //
-    OldTpl            = UsbGetCurrentTpl ();
-    DEBUG ((EFI_D_INFO, "UsbConnectDriver: TPL before connect is %d\n", OldTpl));
+    
+    //
+    // Only recursively wanted usb child device
+    //
+    if (UsbBusIsWantedUsbIO (UsbIf->Device->Bus, UsbIf)) {
+      OldTpl            = UsbGetCurrentTpl ();
+      DEBUG ((EFI_D_INFO, "UsbConnectDriver: TPL before connect is %d\n", OldTpl));
 
-    gBS->RestoreTPL (TPL_CALLBACK);
+      gBS->RestoreTPL (TPL_CALLBACK);
 
-    Status            = gBS->ConnectController (UsbIf->Handle, NULL, NULL, TRUE);
-    UsbIf->IsManaged  = (BOOLEAN)!EFI_ERROR (Status);
+      Status            = gBS->ConnectController (UsbIf->Handle, NULL, NULL, TRUE);
+      UsbIf->IsManaged  = (BOOLEAN)!EFI_ERROR (Status);
 
-    DEBUG ((EFI_D_INFO, "UsbConnectDriver: TPL after connect is %d\n", UsbGetCurrentTpl()));
-    ASSERT (UsbGetCurrentTpl () == TPL_CALLBACK);
+      DEBUG ((EFI_D_INFO, "UsbConnectDriver: TPL after connect is %d\n", UsbGetCurrentTpl()));
+      ASSERT (UsbGetCurrentTpl () == TPL_CALLBACK);
 
-    gBS->RaiseTPL (OldTpl);
+      gBS->RaiseTPL (OldTpl);
+    }
   }
 
   return Status;