From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Fri, 30 Sep 2016 21:56:37 +0000 (+0300)
Subject: net: mvmdio: do not clk_disable_unprepare() NULL clock
X-Git-Tag: v4.9-rc1~127^2~14
X-Git-Url: http://git.cascardo.info/?p=cascardo%2Flinux.git;a=commitdiff_plain;h=f814bfd765218908b23e21ca7f0b6f403fb88972

net: mvmdio: do not clk_disable_unprepare() NULL clock

There is no need to clk_disable_unprepare(dev->clk)
before it was initialized.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 8982c882af1b..a0d1b084ecec 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -211,8 +211,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
 	dev->regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
 	if (!dev->regs) {
 		dev_err(&pdev->dev, "Unable to remap SMI register\n");
-		ret = -ENODEV;
-		goto out_mdio;
+		return -ENODEV;
 	}
 
 	init_waitqueue_head(&dev->smi_busy_wait);