From 3f626cf4a8445015296bb2cc2c98aa9ed619d7cc Mon Sep 17 00:00:00 2001
From: Leo Kim <leo.kim@atmel.com>
Date: Fri, 1 Apr 2016 17:44:17 +0900
Subject: [PATCH] staging: wilc1000: add set to null after release firmware

This patch add set to null after release firmware.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wilc1000/linux_wlan.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 47c01320602b..48bbfa2b15ed 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -1234,8 +1234,10 @@ void wilc_netdev_cleanup(struct wilc *wilc)
 			vif[i] = netdev_priv(wilc->vif[i]->ndev);
 	}
 
-	if (wilc && wilc->firmware)
+	if (wilc && wilc->firmware) {
 		release_firmware(wilc->firmware);
+		wilc->firmware = NULL;
+	}
 
 	if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) {
 		wilc_lock_timeout(wilc, &close_exit_sync, 5 * 1000);