net: sun8i-emac: fix printing NULL character

If the variant is not set and therefore NULL, do not attempt to print
the variant.

Signed-off-by: Lothar Felten <lothar.felten@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@openedev.com>

diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c
index 1f5c630..23c4d68 100644 (file)
--- a/drivers/net/sun8i_emac.c
+++ b/drivers/net/sun8i_emac.c
@@ -843,8 +843,7 @@ static int sun8i_emac_eth_ofdata_to_platdata(struct udevice *dev)
        priv->variant = dev_get_driver_data(dev);
 
        if (!priv->variant) {
-               printf("%s: Missing variant '%s'\n", __func__,
-                      (char *)priv->variant);
+               printf("%s: Missing variant\n", __func__);
                return -EINVAL;
        }