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Catch another case where an XHCI interrupt was being

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injected without state being set up.

This fixes a core dump when dropping to the UEFI prompt
with graphics enabled and moving the mouse around.

Discussed with:	Leon Dang
MFC after:	3 days
This commit is contained in:
Peter Grehan 2016-07-26 23:40:25 +00:00
parent 17146cd543
commit 34b1e8a155
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=303349
1 changed files with 2 additions and 1 deletions
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3
usr.sbin/bhyve/pci_xhci.c
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@ -2559,7 +2559,8 @@ pci_xhci_dev_intr(struct usb_hci *hci, int epctx)
/* check if device is ready; OS has to initialise it */
if (sc->rtsregs.erstba_p == NULL ||
(sc->opregs.usbcmd & XHCI_CMD_RS) == 0)
(sc->opregs.usbcmd & XHCI_CMD_RS) == 0 ||
dev->dev_ctx == NULL)
return (0);
p = XHCI_PORTREG_PTR(sc, hci->hci_port);