1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 18d83d8d7f74..db9360cd861c 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1871,6 +1871,10 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
                 mdio_node = of_find_node_by_phandle(be32_to_cpup(parp));
                 phyid = be32_to_cpup(parp+1);
                 mdio = of_find_device_by_node(mdio_node);
+                if (!mdio) {
+                        pr_err("Missing mdio platform device\n");
+                        return -EINVAL;
+                }
                 snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
                          PHY_ID_FMT, mdio->name, phyid);