staging: rtl8192e: Exclude scan_mutex in rtllib_softmac_stop_scan

Exclude scan_mutex from cancel_delayed_work_sync(&ieee->softmac_scan_wq) as
ieee->softmac_scan_wq takes scan_mutex as well.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/20230514204033.GA20187@matrix-ESPRIMO-P710Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtllib_softmac.c

@@ -682,11 +682,11 @@ static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
 	if (ieee->scanning_continue == 1) {
 		ieee->scanning_continue = 0;
 		ieee->actscanning = false;
-
+		mutex_unlock(&ieee->scan_mutex);
 		cancel_delayed_work_sync(&ieee->softmac_scan_wq);
+	} else {
+		mutex_unlock(&ieee->scan_mutex);
 	}
-
-	mutex_unlock(&ieee->scan_mutex);
 }
 
 void rtllib_stop_scan(struct rtllib_device *ieee)