[ 21/73] netfilter: ipset: "Directory not empty" error message

[Greg Kroah-Hartman]

3.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxxxxxx>

commit dd82088dab3646ed28e4aa43d1a5b5d5ffc2afba upstream.

When an entry flagged with "nomatch" was tested by ipset, it
returned the error message "Kernel error received:
Directory not empty" instead of "<element> is NOT in set <setname>"
(reported by John Brendler).

The internal error code was not properly transformed before returning
to userspace, fixed.

Signed-off-by: Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 net/netfilter/ipset/ip_set_core.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -1470,7 +1470,8 @@ ip_set_utest(struct sock *ctnl, struct s
 	if (ret == -EAGAIN)
 		ret = 1;
 
-	return ret < 0 ? ret : ret > 0 ? 0 : -IPSET_ERR_EXIST;
+	return (ret < 0 && ret != -ENOTEMPTY) ? ret :
+		ret > 0 ? 0 : -IPSET_ERR_EXIST;
 }
 
 /* Get headed data of a set */


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