Staging: wlan-ng: hfa384x_usbin_callback: check for hardware removed

hfa384x_usbin_callback: check for hardware removed

copied from latest wlan-ng-devel version
Signed-off-by: NRichard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/wlan-ng/hfa384x_usb.c

@@ -3604,7 +3604,7 @@ static void hfa384x_usbin_callback(struct urb *urb)
 
 	if ( !wlandev ||
 	     !wlandev->netdev ||
-	     !netif_device_present(wlandev->netdev) )
+	     wlandev->hwremoved )
 		goto exit;
 
 	hw = wlandev->priv;