From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Mon, 7 Sep 2020 20:49:44 +0800
Subject: net: ethernet: fec: remove redundant null check before
 clk_disable_unprepare()
Git-commit: 05891200706117895b7faac7e53b14118b6a8114
Patch-mainline: v5.10-rc1
References: jsc#SLE-16106

Because clk_prepare_enable() and clk_disable_unprepare() already checked
NULL clock parameter, so the additional checks are unnecessary, just
remove them.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
 drivers/net/ethernet/freescale/fec_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index fb37816a74db..c043afb38b6e 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1960,8 +1960,7 @@ static int fec_enet_clk_enable(struct net_device *ndev, bool enable)
 		mutex_unlock(&fep->ptp_clk_mutex);
 	}
 failed_clk_ptp:
-	if (fep->clk_enet_out)
-		clk_disable_unprepare(fep->clk_enet_out);
+	clk_disable_unprepare(fep->clk_enet_out);
 
 	return ret;
 }