This is a note to let you know that I've just added the patch titled
net: phy: xgene: disable clk on error paths
to the 4.9-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-phy-xgene-disable-clk-on-error-paths.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Wed Feb 28 16:13:29 CET 2018
From: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
Date: Sat, 16 Dec 2017 00:52:39 +0300
Subject: net: phy: xgene: disable clk on error paths
From: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
[ Upstream commit ab14436065c8066c265540312742390d6d07ddd2 ]
There are several error paths in xgene_mdio_probe(),
where clk is left undisabled. The patch fixes them.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/phy/mdio-xgene.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
--- a/drivers/net/phy/mdio-xgene.c
+++ b/drivers/net/phy/mdio-xgene.c
@@ -197,8 +197,11 @@ static int xgene_mdio_reset(struct xgene
}
ret = xgene_enet_ecc_init(pdata);
- if (ret)
+ if (ret) {
+ if (pdata->dev->of_node)
+ clk_disable_unprepare(pdata->clk);
return ret;
+ }
xgene_gmac_reset(pdata);
return 0;
@@ -364,8 +367,10 @@ static int xgene_mdio_probe(struct platf
return ret;
mdio_bus = mdiobus_alloc();
- if (!mdio_bus)
- return -ENOMEM;
+ if (!mdio_bus) {
+ ret = -ENOMEM;
+ goto out_clk;
+ }
mdio_bus->name = "APM X-Gene MDIO bus";
@@ -394,7 +399,7 @@ static int xgene_mdio_probe(struct platf
mdio_bus->phy_mask = ~0;
ret = mdiobus_register(mdio_bus);
if (ret)
- goto out;
+ goto out_mdiobus;
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_HANDLE(dev), 1,
acpi_register_phy, NULL, mdio_bus, NULL);
@@ -402,16 +407,20 @@ static int xgene_mdio_probe(struct platf
}
if (ret)
- goto out;
+ goto out_mdiobus;
pdata->mdio_bus = mdio_bus;
xgene_mdio_status = true;
return 0;
-out:
+out_mdiobus:
mdiobus_free(mdio_bus);
+out_clk:
+ if (dev->of_node)
+ clk_disable_unprepare(pdata->clk);
+
return ret;
}
Patches currently in stable-queue which might be from khoroshilov@xxxxxxxxx are
queue-4.9/net-phy-xgene-disable-clk-on-error-paths.patch