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authorSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>2013-05-07 03:49:31 +0400
committerDavid S. Miller <davem@davemloft.net>2013-05-09 00:13:29 +0400
commit058112c7efc9ef43bb511c137293dddbe6e42908 (patch)
treec3c00dafaeaa95f78a3296f2cbd58bba92dd6613 /drivers/of
parent7b0c5f21f348a66de495868b8df0284e8dfd6bbf (diff)
downloadlinux-058112c7efc9ef43bb511c137293dddbe6e42908.tar.xz
net: of_mdio: fix behavior on missing phy device
of_mdiobus_register creates a phy_device even if get_phy_device failed to create it previously. This causes indefinite polling on non-existent PHYs. This fix makes of_mdio_register rely on get_phy_device to properly create the device or fail otherwise. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/of_mdio.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 23049aeca662..d5a57a9e329c 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -84,13 +84,10 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
phy = get_phy_device(mdio, addr, is_c45);
if (!phy || IS_ERR(phy)) {
- phy = phy_device_create(mdio, addr, 0, false, NULL);
- if (!phy || IS_ERR(phy)) {
- dev_err(&mdio->dev,
- "error creating PHY at address %i\n",
- addr);
- continue;
- }
+ dev_err(&mdio->dev,
+ "cannot get PHY at address %i\n",
+ addr);
+ continue;
}
/* Associate the OF node with the device structure so it