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

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

From: Helmut Schaa <[email protected]>

commit f5685ba675449b072feab6a5391a9ef9f604bc94 upstream.

Otherwise rt2500* triggers a warning in cfg80211, from net/wireless/core.c:

        /* Combinations with just one interface aren't real */
        if (WARN_ON(c->max_interfaces < 2))

This was introduced in commit 55d2e9da744ba11eae900b4bfc2da72eace3c1e1:
rt2x00: Replace open coded interface checking with interface combinations.

Reported-by: Stefan Lippers-Hollmann <[email protected]>
Tested-by: Stefan Lippers-Hollmann <[email protected]>
Signed-off-by: Helmut Schaa <[email protected]>
Acked-by: Gertjan van Wingerde <[email protected]>
Acked-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/net/wireless/rt2x00/rt2x00dev.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1123,6 +1123,9 @@ static inline void rt2x00lib_set_if_comb
        struct ieee80211_iface_limit *if_limit;
        struct ieee80211_iface_combination *if_combination;
 
+       if (rt2x00dev->ops->max_ap_intf < 2)
+               return;
+
        /*
         * Build up AP interface limits structure.
         */


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