rndis_wlan: clear cfg80211 scan on rndis_wlan_stop()

Scanning gets stuck if device is stopped when scan is active. Fix by
clearing/aborting cfg80211 scan on rndis_wlan_stop().

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index 3c7c620c4f0..dee05511d59 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -1484,6 +1484,9 @@ static void rndis_get_scan_results(struct work_struct *work)
 
         devdbg(usbdev, "get_scan_results");
 
+        if (!priv->scan_request)
+                return;
+
         ret = rndis_check_bssid_list(usbdev);
 
         cfg80211_scan_done(priv->scan_request, ret < 0);
@@ -2522,6 +2525,11 @@ static int rndis_wlan_stop(struct usbnet *usbdev)
         cancel_work_sync(&priv->work);
         flush_workqueue(priv->workqueue);
 
+        if (priv->scan_request) {
+                cfg80211_scan_done(priv->scan_request, true);
+                priv->scan_request = NULL;
+        }
+
         return retval;
 }