[PATCH 4.4 025/115] net: bcmgenet: power down internal phy if open or resume fails

[Greg Kroah-Hartman]

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Doug Berger <open...@gmail.com>


[ Upstream commit 7627409cc4970e8c8b9de6945ad86a575290a94e ]

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

Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file")
Signed-off-by: Doug Berger <open...@gmail.com>
Reviewed-by: Florian Fainelli <f.faine...@gmail.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -2950,6 +2950,8 @@ err_irq0:
 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;
 }
@@ -3653,6 +3655,8 @@ static int bcmgenet_resume(struct device
        return 0;
 
 out_clk_disable:
+       if (priv->internal_phy)
+               bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
        clk_disable_unprepare(priv->clk);
        return ret;
 }