cfg80211: Fix WEXT compat siwauth wpa and group cipher

Neither of these commands should clear the current configuration value
if they return error. Furthermore, cfg80211_set_cipher_group() should
be able to handle IW_AUTH_CIPHER_NONE without reporting error.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 561a45cf2a6a..41abcbdc5fb9 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -904,8 +904,6 @@ static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 
 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 {
-        wdev->wext.connect.crypto.wpa_versions = 0;
-
         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
                              IW_AUTH_WPA_VERSION_WPA2|
                              IW_AUTH_WPA_VERSION_DISABLED))
@@ -933,8 +931,6 @@ static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 
 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 {
-        wdev->wext.connect.crypto.cipher_group = 0;
-
         if (cipher & IW_AUTH_CIPHER_WEP40)
                 wdev->wext.connect.crypto.cipher_group =
                         WLAN_CIPHER_SUITE_WEP40;
@@ -950,6 +946,8 @@ static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
                 wdev->wext.connect.crypto.cipher_group =
                         WLAN_CIPHER_SUITE_AES_CMAC;
+        else if (cipher & IW_AUTH_CIPHER_NONE)
+                wdev->wext.connect.crypto.cipher_group = 0;
         else
                 return -EINVAL;