svn commit: r197558 - head/sys/dev/usb
Andrew Thompson
thompsa at FreeBSD.org
Mon Sep 28 07:39:53 UTC 2009
Author: thompsa
Date: Mon Sep 28 07:39:51 2009
New Revision: 197558
URL: http://svn.freebsd.org/changeset/base/197558
Log:
Fix NULL-pointer dereference in usb_endpoint_foreach().
PR: usb/138389
Submitted by: Patroklos Argyroudis at census, inc
Modified:
head/sys/dev/usb/usb_device.c
Modified: head/sys/dev/usb/usb_device.c
==============================================================================
--- head/sys/dev/usb/usb_device.c Mon Sep 28 07:32:11 2009 (r197557)
+++ head/sys/dev/usb/usb_device.c Mon Sep 28 07:39:51 2009 (r197558)
@@ -367,12 +367,14 @@ usb_init_endpoint(struct usb_device *ude
struct usb_endpoint *
usb_endpoint_foreach(struct usb_device *udev, struct usb_endpoint *ep)
{
- struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
+ struct usb_endpoint *ep_end;
/* be NULL safe */
if (udev == NULL)
return (NULL);
+ ep_end = udev->endpoints + udev->endpoints_max;
+
/* get next endpoint */
if (ep == NULL)
ep = udev->endpoints;
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