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net: mvmdio: simplify the smi read and write error paths

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Cosmetic patch simplifying the smi read and write error paths. It also
align their error paths with the ones of the xsmi functions.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Antoine Ténart 2017-06-15 16:43:24 +02:00 committed by David S. Miller
parent c0ac08f533
commit 0268b51e30
1 changed files with 6 additions and 10 deletions
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16
drivers/net/ethernet/marvell/mvmdio.c
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@ -149,7 +149,7 @@ static int orion_mdio_smi_read(struct mii_bus *bus, int mii_id,
ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus);
if (ret < 0)
goto out;
return ret;
writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) |
(regnum << MVMDIO_SMI_PHY_REG_SHIFT) |
@ -158,18 +158,15 @@ static int orion_mdio_smi_read(struct mii_bus *bus, int mii_id,
ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus);
if (ret < 0)
goto out;
return ret;
val = readl(dev->regs);
if (!(val & MVMDIO_SMI_READ_VALID)) {
dev_err(bus->parent, "SMI bus read not valid\n");
ret = -ENODEV;
goto out;
return -ENODEV;
}
ret = val & GENMASK(15, 0);
out:
return ret;
return val & GENMASK(15, 0);
}
static int orion_mdio_smi_write(struct mii_bus *bus, int mii_id,
@ -183,7 +180,7 @@ static int orion_mdio_smi_write(struct mii_bus *bus, int mii_id,
ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus);
if (ret < 0)
goto out;
return ret;
writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) |
(regnum << MVMDIO_SMI_PHY_REG_SHIFT) |
@ -191,8 +188,7 @@ static int orion_mdio_smi_write(struct mii_bus *bus, int mii_id,
(value << MVMDIO_SMI_DATA_SHIFT)),
dev->regs);
out:
return ret;
return 0;
}
static int orion_mdio_xsmi_is_done(struct orion_mdio_dev *dev)