usb/138389: commit references a PR

[dfilter service]

The following reply was made to PR usb/138389; it has been noted by GNATS.

From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: usb/138389: commit references a PR
Date: Mon, 28 Sep 2009 07:40:07 +0000 (UTC)

 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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