Date: Sun, 9 Oct 2011 21:21:37 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r226175 - head/sys/kern Message-ID: <201110092121.p99LLbYB027232@svn.freebsd.org>
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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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