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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 7c8c142e4eb8..2fe922bfade8 100644
--- 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;