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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