net: of_mdio: don't store the length of a property if we don't need to

of_get_property() can be called with NULL as 2nd argument if the caller
is not interested in the length of a property. Use that here so we can
get rid of a variable.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 7c8c142e4eb84396b83c9b0f50ae10bc7fb2b570..2fe922bfade8c04cd2bcae91a0fb8960ace41cf0 100644 (file)
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -123,7 +123,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
        const __be32 *paddr;
        u32 addr;
        bool scanphys = false;
-       int rc, i, len;
+       int rc, i;
 
        /* Mask out all PHYs from auto probing.  Instead the PHYs listed in
         * the device tree are populated after the bus has been registered */
@@ -160,7 +160,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
        /* auto scan for PHYs with empty reg property */
        for_each_available_child_of_node(np, child) {
                /* Skip PHYs with reg property set */
-               paddr = of_get_property(child, "reg", &len);
+               paddr = of_get_property(child, "reg", NULL);
                if (paddr)
                        continue;