Fix bug that made automount(8) never unmount stale autofs(5) mounts,

ie mounts for entries that were there in auto_master(5), and then
got removed.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation

1 files changed, 14 insertions, 3 deletions

diff --git a/usr.sbin/autofs/common.c b/usr.sbin/autofs/common.c
index 6fd8a05..8ace69d 100644
--- a/usr.sbin/autofs/common.c
+++ b/usr.sbin/autofs/common.c
@@ -676,8 +676,8 @@ node_print(const struct node *n)
 		node_print_indent(child, 0);
 }
 
-struct node *
-node_find(struct node *node, const char *path)
+static struct node *
+node_find_x(struct node *node, const char *path)
 {
 	struct node *child, *found;
 	char *tmp;
@@ -702,7 +702,7 @@ node_find(struct node *node, const char *path)
 	free(tmp);
 
 	TAILQ_FOREACH(child, &node->n_children, n_next) {
-		found = node_find(child, path);
+		found = node_find_x(child, path);
 		if (found != NULL)
 			return (found);
 	}
@@ -710,6 +710,17 @@ node_find(struct node *node, const char *path)
 	return (node);
 }
 
+struct node *
+node_find(struct node *root, const char *path)
+{
+	struct node *node;
+
+	node = node_find_x(root, path);
+	if (node == root)
+		return (NULL);
+	return (node);
+}
+
 /*
  * Canonical form of a map entry looks like this:
  *