mwifiex: fix scan_block flag handling

scan_block flag is used to block scan operation when 4 way handshake
is in progress. Sometimes it doesn't get cleared due to incomplete
association. An example is assoc request/response is done, but add key
operation get canceled in some corner cases. As a result, further
association/scan operations are blocked.

This patch fixes the problem by clearing scan_block flag.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index e6befd5..867ab81 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -2250,6 +2250,9 @@ mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
                return -EALREADY;
        }
 
+       if (priv->scan_block)
+               priv->scan_block = false;
+
        if (adapter->surprise_removed || adapter->is_cmd_timedout) {
                mwifiex_dbg(adapter, ERROR,
                            "%s: Ignore connection.\t"
@@ -2468,6 +2471,9 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
                return -EBUSY;
        }
 
+       if (!priv->wdev.current_bss && priv->scan_block)
+               priv->scan_block = false;
+
        if (!mwifiex_stop_bg_scan(priv))
                cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);