diff options
| author | Liam Merwick <liam.merwick@oracle.com> | 2019-02-06 13:36:50 +0000 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2019-02-20 09:41:23 +0100 |
| commit | 7cb513aa34fe5639c71223f06b2b6c7934815317 (patch) | |
| tree | 7f8526d8af934b86b0c8cea6a2c0f8872fd0b00a | |
| parent | 92cf34279ce907cabf6cb0626ad8a9076eeab9b2 (diff) | |
| download | qemu-7cb513aa34fe5639c71223f06b2b6c7934815317.zip | |
xhci: check device is not NULL before calling usb_ep_get()
Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
Message-id: 1549460216-25808-4-git-send-email-liam.merwick@oracle.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | hw/usb/hcd-xhci.c | 4 |
1 files 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); } |