wl1271: Move scan complete invocation into work function

The current scan implementation can jam, if the scan request ends up
containing no work. This can especially happen if there is a scan request
with only 11a band channels for HW that does not support 11a.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271.h b/drivers/net/wireless/wl12xx/wl1271.h
index 763ece8..272cff4 100644
--- a/drivers/net/wireless/wl12xx/wl1271.h
+++ b/drivers/net/wireless/wl12xx/wl1271.h
@@ -416,6 +416,7 @@
 
 	/* Are we currently scanning */
 	struct wl1271_scan scan;
+	struct work_struct scan_complete_work;
 
 	/* Our association ID */
 	u16 aid;