diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.c b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.c
index 54420b966..5bca1de1a 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.c
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.c
@@ -1157,11 +1157,12 @@ static void xhci_dcbaa_free ( struct xhci_host *xhci ) {
 		USB_ASSERT ( xhci->dcbaa.context[i] == 0 );
 
 	/* Clear DCBAA pointer */
-	xhci_writeq ( xhci, 0, xhci->op + XHCI_OP_DCBAAP );
+//	xhci_writeq ( xhci, 0, xhci->op + XHCI_OP_DCBAAP );
+    xhci_writeq ( xhci, 0, xhci->op_addr + XHCI_OP_DCBAAP );
 
 	/* Free DCBAA */
 	len = ( ( xhci->slots + 1 ) * sizeof ( xhci->dcbaa.context[0] ) );
-	usb_free ( xhci->dcbaa.context );
+//	usb_free ( xhci->dcbaa.context );
 }
 
 /**
@@ -1230,9 +1231,9 @@ void xhci_close ( struct xhci_host *xhci ) {
 		USB_ASSERT ( xhci->slot[i] == NULL );
 
 	xhci_stop ( xhci );
-	usb_free (xhci->evts);
-	usb_free (xhci->eseg);
-	usb_free (xhci->cmds);
+//	usb_free (xhci->evts);
+//	usb_free (xhci->eseg);
+//	usb_free (xhci->cmds);
 	xhci_scratchpad_free ( xhci );
 	xhci_dcbaa_free ( xhci );
 	usb_free ( xhci->slot );