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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, 29 Jan 2012 00:41:18 +0000 (UTC)

 Author: marius
 Date: Sun Jan 29 00:41:08 2012
 New Revision: 230696
 URL: http://svn.freebsd.org/changeset/base/230696
 
 Log:
   MFC: r226175
   
   In device_get_children() avoid malloc(0) in order to increase portability
   to other operating systems.
   
   PR:	154287
 
 Modified:
   stable/8/sys/kern/subr_bus.c
 Directory Properties:
   stable/8/sys/   (props changed)
   stable/8/sys/amd64/include/xen/   (props changed)
   stable/8/sys/cddl/contrib/opensolaris/   (props changed)
   stable/8/sys/contrib/dev/acpica/   (props changed)
   stable/8/sys/contrib/pf/   (props changed)
 
 Modified: stable/8/sys/kern/subr_bus.c
 ==============================================================================
 --- stable/8/sys/kern/subr_bus.c	Sun Jan 29 00:40:39 2012	(r230695)
 +++ stable/8/sys/kern/subr_bus.c	Sun Jan 29 00:41:08 2012	(r230696)
 @@ -2176,6 +2176,11 @@ 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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