Patch "net: bcmgenet: power down internal phy if open or resume fails" has been added to the 4.4-stable tree

Patch "net: bcmgenet: power down internal phy if open or resume fails" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    net: bcmgenet: power down internal phy if open or resume fails

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-bcmgenet-power-down-internal-phy-if-open-or-resume-fails.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Mon Dec 18 14:47:43 CET 2017
From: Doug Berger <opendmb@gmail.com>
Date: Thu, 9 Mar 2017 16:58:46 -0800
Subject: net: bcmgenet: power down internal phy if open or resume fails

From: Doug Berger <opendmb@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 <opendmb@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@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;
 }


Patches currently in stable-queue which might be from opendmb@gmail.com are

queue-4.4/net-bcmgenet-correct-the-rbuf_ovfl_cnt-and-rbuf_err_cnt-mib-values.patch
queue-4.4/net-bcmgenet-correct-mib-access-of-unimac-runt-counters.patch
queue-4.4/net-bcmgenet-power-down-internal-phy-if-open-or-resume-fails.patch
queue-4.4/net-bcmgenet-reserved-phy-revisions-must-be-checked-first.patch
queue-4.4/net-bcmgenet-power-up-the-internal-phy-before-probing-the-mii.patch