From: Leigh Brown <leigh@solinno.co.uk>
Date: Tue, 29 Oct 2013 09:33:33 +0000 (+0000)
Subject: net: mvmdio: slight optimisation of orion_mdio_write
X-Git-Tag: next-20131105~63^2~37
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=526edcf56759142c1c250d2d4c55db9f25be644b;p=karo-tx-linux.git

net: mvmdio: slight optimisation of orion_mdio_write

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>
---

diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index e3898b3c91ad..0cfa0c860bc3 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -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)