orinoco: Clear dangling pointer on hardware busy

On hardware busy the scan request pointer should be cleared, as higher
levels will release. This avoids a crash when that pointer is
erroneously used later.

Signed-off-by: Joseph J. Gunn <armadefuego@yahoo.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/wireless/orinoco/cfg.c b/drivers/net/wireless/orinoco/cfg.c
index 09fae2f0ea08..736bbb9bd1d0 100644
--- a/drivers/net/wireless/orinoco/cfg.c
+++ b/drivers/net/wireless/orinoco/cfg.c
@@ -153,6 +153,9 @@ static int orinoco_scan(struct wiphy *wiphy, struct net_device *dev,
         priv->scan_request = request;
 
         err = orinoco_hw_trigger_scan(priv, request->ssids);
+        /* On error the we aren't processing the request */
+        if (err)
+                priv->scan_request = NULL;
 
         return err;
 }