linux-kernel - [PATCH net 4/8] net: bcmgenet: power down internal phy if open or resume fails

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Date:   Thu,  9 Mar 2017 16:49:02 -0800
From:   Doug Berger <opendmb@...il.com>
To:     f.fainelli@...il.com
Cc:     pgynther@...gle.com, jaedon.shin@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Doug Berger <doug.berger@...adcom.com>
Subject: [PATCH net 4/8] net: bcmgenet: power down internal phy if open or resume fails

From: Doug Berger <doug.berger@...adcom.com>

Since the internal PHY is powered up during the open and resume
functions it should be powered back down if the functions fail.

refs #SWLINUX-4311

Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file")
Signed-off-by: Doug Berger <doug.berger@...adcom.com>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 99f8d9024633..475dc14931af 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -2850,6 +2850,8 @@ static int bcmgenet_open(struct net_device *dev)
 err_fini_dma:
 	bcmgenet_fini_dma(priv);
 err_clk_disable:
+	if (priv->internal_phy)
+		bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
 	clk_disable_unprepare(priv->clk);
 	return ret;
 }
@@ -3551,6 +3553,8 @@ static int bcmgenet_resume(struct device *d)
 	return 0;
 
 out_clk_disable:
+	if (priv->internal_phy)
+		bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
 	clk_disable_unprepare(priv->clk);
 	return ret;
 }
-- 
2.11.1