svn commit: r324268 - stable/11/sys/kern
Edward Tomasz Napierala
trasz at FreeBSD.org
Wed Oct 4 11:58:54 UTC 2017
Author: trasz
Date: Wed Oct 4 11:58:52 2017
New Revision: 324268
URL: https://svnweb.freebsd.org/changeset/base/324268
Log:
MFC r323183:
Make root_mount_rel(9) ignore NULL arguments, like it used to before r313351.
It would be better to fix API consumers to not pass NULL there - most of them,
such as gmirror, already contain the neccessary checks - but this is easier
and much less error-prone.
One known user-visible result is that it fixes panic on a failed "graid label".
Modified:
stable/11/sys/kern/vfs_mountroot.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/kern/vfs_mountroot.c
==============================================================================
--- stable/11/sys/kern/vfs_mountroot.c Wed Oct 4 11:55:34 2017 (r324267)
+++ stable/11/sys/kern/vfs_mountroot.c Wed Oct 4 11:58:52 2017 (r324268)
@@ -183,7 +183,8 @@ void
root_mount_rel(struct root_hold_token *h)
{
- KASSERT(h != NULL, ("%s: NULL token", __func__));
+ if (h == NULL)
+ return;
mtx_lock(&root_holds_mtx);
LIST_REMOVE(h, list);
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