svn commit: r230696 - stable/8/sys/kern
Marius Strobl
marius at FreeBSD.org
Sun Jan 29 00:41:09 UTC 2012
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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