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Subject: Re: kern/154287: commit references a PR
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The following reply was made to PR kern/154287; it has been noted by GNATS.

From: dfilter@FreeBSD.ORG (dfilter service)
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: kern/154287: commit references a PR
Date: Sun,  9 Oct 2011 21:21:47 +0000 (UTC)

 Author: marius
 Date: Sun Oct  9 21:21:37 2011
 New Revision: 226175
 URL: http://svn.freebsd.org/changeset/base/226175
 
 Log:
   In device_get_children() avoid malloc(0) in order to increase portability
   to other operating systems.
   
   PR:     154287
 
 Modified:
   head/sys/kern/subr_bus.c
 
 Modified: head/sys/kern/subr_bus.c
 ==============================================================================
 --- head/sys/kern/subr_bus.c	Sun Oct  9 20:58:02 2011	(r226174)
 +++ head/sys/kern/subr_bus.c	Sun Oct  9 21:21:37 2011	(r226175)
 @@ -2140,6 +2140,11 @@ device_get_children(device_t dev, device
  	TAILQ_FOREACH(child, &dev->children, link) {
  		count++;
  	}
 +	if (count == 0) {
 +		*devlistp = NULL;
 +		*devcountp = 0;
 +		return (0);
 +	}
  
  	list = malloc(count * sizeof(device_t), M_TEMP, M_NOWAIT|M_ZERO);
  	if (!list)
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