Date: Wed, 11 Mar 2009 04:56:31 +0000 (UTC) From: Andrew Thompson <thompsa@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r189676 - head/sys/dev/usb/controller Message-ID: <200903110456.n2B4uVLY084616@svn.freebsd.org>
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Author: thompsa Date: Wed Mar 11 04:56:30 2009 New Revision: 189676 URL: http://svn.freebsd.org/changeset/base/189676 Log: Fix a possible NULL pointer access at controller attach. Submitted by: Hans Petter Selasky Modified: head/sys/dev/usb/controller/usb_controller.c Modified: head/sys/dev/usb/controller/usb_controller.c ============================================================================== --- head/sys/dev/usb/controller/usb_controller.c Wed Mar 11 03:19:19 2009 (r189675) +++ head/sys/dev/usb/controller/usb_controller.c Wed Mar 11 04:56:30 2009 (r189676) @@ -346,7 +346,8 @@ usb2_bus_attach(struct usb2_proc_msg *pm err = usb2_probe_and_attach(child, USB_IFACE_INDEX_ANY); if (!err) { - if (!bus->devices[USB_ROOT_HUB_ADDR]->hub) { + if ((bus->devices[USB_ROOT_HUB_ADDR] == NULL) || + (bus->devices[USB_ROOT_HUB_ADDR]->hub == NULL)) { err = USB_ERR_NO_ROOT_HUB; } }
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