ath9k: Fix set_key error codes

Return -EOPNOTSUPP if the algorithm is not supported and -ENOSPC if
there is no room in the key cache. This avoids KERN_ERR printk in
mac80211 for "errors" that are actually expected to happen in normal
operating conditions.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 5e9a3e1..fc4439f 100644 (file)
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -817,7 +817,7 @@ static int ath_key_config(struct ath_softc *sc,
                hk.kv_type = ATH9K_CIPHER_AES_CCM;
                break;
        default:
-               return -EINVAL;
+               return -EOPNOTSUPP;
        }
 
        hk.kv_len = key->keylen;
@@ -851,7 +851,7 @@ static int ath_key_config(struct ath_softc *sc,
                else
                        idx = ath_reserve_key_cache_slot(sc);
                if (idx < 0)
-                       return -EIO; /* no free key cache entries */
+                       return -ENOSPC; /* no free key cache entries */
        }
 
        if (key->alg == ALG_TKIP)