[netdrvr] phy: Fix bugs in error handling

The recent __must_check stuff flagged some error handling bugs.

phy/fixed.c:
* handle device_bind_driver() failure

phy/phy_device.c:
* handle device_bind_driver() failure
* release rwsem upon failure

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index ecd3da1..3bbd5e7 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -212,11 +212,13 @@
 
 		err = d->driver->probe(d);
 
-		if (err < 0)
-			return ERR_PTR(err);
+		if (err >= 0)
+			err = device_bind_driver(d);
 
-		device_bind_driver(d);
 		up_write(&d->bus->subsys.rwsem);
+
+		if (err)
+			return ERR_PTR(err);
 	}
 
 	if (phydev->attached_dev) {