1 files changed, 12 insertions, 2 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index dd24b2663b5e..4ff26c2159bf 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -506,9 +506,19 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
         if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
                 return 0;
-        else if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
+
+        if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
+                return -EOPNOTSUPP;
+
+        /*
+         * To support IBSS RSN, don't program group keys in IBSS, the
+         * hardware will then not attempt to decrypt the frames.
+         */
+        if (vif->type == NL80211_IFTYPE_ADHOC &&
+            !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
                 return -EOPNOTSUPP;
-        else if (key->keylen > 32)
+
+        if (key->keylen > 32)
                 return -ENOSPC;
 
         memset(&crypto, 0, sizeof(crypto));