linux-kernel - [2.6 patch] net/phy/mdio_bus.c: fix a check-after-use

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Date:	Wed, 20 Feb 2008 02:13:53 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	jgarzik@...ox.com
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [2.6 patch] net/phy/mdio_bus.c: fix a check-after-use

This patch fixes a check-after-use spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@...nel.org>

---
6beeb3ac577d74d72b2f91bd654eecb904c3c17e diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 6e9f619..963630c 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -49,13 +49,13 @@ int mdiobus_register(struct mii_bus *bus)
 	int i;
 	int err = 0;
 
-	mutex_init(&bus->mdio_lock);
-
 	if (NULL == bus || NULL == bus->name ||
 			NULL == bus->read ||
 			NULL == bus->write)
 		return -EINVAL;
 
+	mutex_init(&bus->mdio_lock);
+
 	if (bus->reset)
 		bus->reset(bus);
 

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