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prevent assert on unmount.

This commit is contained in:
christos 2018-01-13 22:06:21 +00:00
parent bc90bc10ae
commit 36038078db
1 changed files with 8 additions and 1 deletions
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9
sys/fs/autofs/autofs_vfsops.c
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@ -33,7 +33,7 @@
*
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: autofs_vfsops.c,v 1.2 2018/01/09 16:19:39 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: autofs_vfsops.c,v 1.3 2018/01/13 22:06:21 christos Exp $");
#include "autofs.h"
@ -219,6 +219,13 @@ autofs_unmount(struct mount *mp, int mntflags)
while (!RB_EMPTY(&amp->am_root->an_children)) {
struct autofs_node *anp;
anp = RB_MIN(autofs_node_tree, &amp->am_root->an_children);
if (!RB_EMPTY(&anp->an_children)) {
AUTOFS_DEBUG("%s: %s has children", __func__,
anp->an_name);
mutex_exit(&amp->am_lock);
return EBUSY;
}
autofs_node_delete(anp);
}
autofs_node_delete(amp->am_root);