From 7cb513aa34fe5639c71223f06b2b6c7934815317 Mon Sep 17 00:00:00 2001 From: Liam Merwick Date: Wed, 6 Feb 2019 13:36:50 +0000 Subject: [PATCH] xhci: check device is not NULL before calling usb_ep_get() Signed-off-by: Liam Merwick Message-id: 1549460216-25808-4-git-send-email-liam.merwick@oracle.com Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-xhci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 99b83aaa9e..ec28bee319 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -3276,10 +3276,10 @@ static USBEndpoint *xhci_epid_to_usbep(XHCIEPContext *epctx) return NULL; } uport = epctx->xhci->slots[epctx->slotid - 1].uport; - token = (epctx->epid & 1) ? USB_TOKEN_IN : USB_TOKEN_OUT; - if (!uport) { + if (!uport || !uport->dev) { return NULL; } + token = (epctx->epid & 1) ? USB_TOKEN_IN : USB_TOKEN_OUT; return usb_ep_get(uport->dev, token, epctx->epid >> 1); } -- 2.39.2