Date: Wed, 6 Feb 2013 11:08:11 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r246395 - stable/9/sys/dev/usb/controller Message-ID: <201302061108.r16B8BF1088652@svn.freebsd.org>
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Author: hselasky Date: Wed Feb 6 11:08:11 2013 New Revision: 246395 URL: http://svnweb.freebsd.org/changeset/base/246395 Log: MFC r246113 and r246126: Add missing NULL pointer check. Reported by: Lars Engels Modified: stable/9/sys/dev/usb/controller/xhci.c Directory Properties: stable/9/sys/ (props changed) stable/9/sys/dev/ (props changed) Modified: stable/9/sys/dev/usb/controller/xhci.c ============================================================================== --- stable/9/sys/dev/usb/controller/xhci.c Wed Feb 6 08:29:00 2013 (r246394) +++ stable/9/sys/dev/usb/controller/xhci.c Wed Feb 6 11:08:11 2013 (r246395) @@ -886,6 +886,12 @@ xhci_check_transfer(struct xhci_softc *s * a short packet also makes the transfer done */ if (td->remainder > 0) { + if (td->alt_next == NULL) { + DPRINTF( + "short TD has no alternate next\n"); + xhci_generic_done(xfer); + break; + } DPRINTF("TD has short pkt\n"); if (xfer->flags_int.short_frames_ok || xfer->flags_int.isochronous_xfr ||
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