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authorByungho An <bh74.an@samsung.com>2014-04-18 15:59:39 +0400
committerDavid S. Miller <davem@davemloft.net>2014-04-23 00:07:17 +0400
commit7b07bd4e5187e8553d7776f5225e19f00b9fb863 (patch)
tree9afebf68f1a9491f296a8aa3bab971c4543b5d4e
parent3ee2b7c4b6785aab45a548b161b4c42ac6522592 (diff)
downloadlinux-7b07bd4e5187e8553d7776f5225e19f00b9fb863.tar.xz
net: sxgbe: Added phy_found error path
This patch adds phy_found error path when there is no phy device and changes bus_name. Signed-off-by: Byungho An <bh74.an@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/samsung/sxgbe/sxgbe_mdio.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_mdio.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_mdio.c
index 01af2cbb479d..43ccb4a6de15 100644
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_mdio.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_mdio.c
@@ -27,7 +27,7 @@
#define SXGBE_SMA_PREAD_CMD 0x02 /* post read increament address */
#define SXGBE_SMA_READ_CMD 0x03 /* read command */
#define SXGBE_SMA_SKIP_ADDRFRM 0x00040000 /* skip the address frame */
-#define SXGBE_MII_BUSY 0x00800000 /* mii busy */
+#define SXGBE_MII_BUSY 0x00400000 /* mii busy */
static int sxgbe_mdio_busy_wait(void __iomem *ioaddr, unsigned int mii_data)
{
@@ -147,6 +147,7 @@ int sxgbe_mdio_register(struct net_device *ndev)
struct sxgbe_mdio_bus_data *mdio_data = priv->plat->mdio_bus_data;
int err, phy_addr;
int *irqlist;
+ bool phy_found = false;
bool act;
/* allocate the new mdio bus */
@@ -162,7 +163,7 @@ int sxgbe_mdio_register(struct net_device *ndev)
irqlist = priv->mii_irq;
/* assign mii bus fields */
- mdio_bus->name = "samsxgbe";
+ mdio_bus->name = "sxgbe";
mdio_bus->read = &sxgbe_mdio_read;
mdio_bus->write = &sxgbe_mdio_write;
snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s-%x",
@@ -216,13 +217,22 @@ int sxgbe_mdio_register(struct net_device *ndev)
netdev_info(ndev, "PHY ID %08x at %d IRQ %s (%s)%s\n",
phy->phy_id, phy_addr, irq_str,
dev_name(&phy->dev), act ? " active" : "");
+ phy_found = true;
}
}
+ if (!phy_found) {
+ netdev_err(ndev, "PHY not found\n");
+ goto phyfound_err;
+ }
+
priv->mii = mdio_bus;
return 0;
+phyfound_err:
+ err = -ENODEV;
+ mdiobus_unregister(mdio_bus);
mdiobus_err:
mdiobus_free(mdio_bus);
return err;