PTR_ERR should be called before its argument is cleared.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression e,e1;
constant c;
@@
*e = c
... when != e = e1
    when != &e
    when != true IS_ERR(e)
*PTR_ERR(e)
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reported-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
                if (IS_ERR(priv->phydev)) {
                        dev_err(emac_dev, "could not connect to phy %s\n",
                                priv->phy_id);
+                       ret = PTR_ERR(priv->phydev);
                        priv->phydev = NULL;
-                       return PTR_ERR(priv->phydev);
+                       return ret;
                }
 
                priv->link = 0;
 
 
        data->clk = clk_get(dev, NULL);
        if (IS_ERR(data->clk)) {
-               data->clk = NULL;
                dev_err(dev, "failed to get device clock\n");
                ret = PTR_ERR(data->clk);
+               data->clk = NULL;
                goto bail_out;
        }