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net: mvmdio: slight optimisation of orion_mdio_write

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Make only a single call to mutex_unlock in orion_mdio_write.

Signed-off-by: Leigh Brown <leigh@solinno.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Leigh Brown 2013-10-29 09:33:33 +00:00 committed by David S. Miller
parent 839f46bb4c
commit 526edcf567
1 changed files with 4 additions and 6 deletions
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10
drivers/net/ethernet/marvell/mvmdio.c
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@ -150,10 +150,8 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id,
mutex_lock(&dev->lock);
ret = orion_mdio_wait_ready(bus);
if (ret < 0) {
mutex_unlock(&dev->lock);
return ret;
}
if (ret < 0)
goto out;
writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) |
(regnum << MVMDIO_SMI_PHY_REG_SHIFT) |
@ -161,9 +159,9 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id,
(value << MVMDIO_SMI_DATA_SHIFT)),
dev->regs);
out:
mutex_unlock(&dev->lock);
return 0;
return ret;
}
static int orion_mdio_reset(struct mii_bus *bus)