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-rw-r--r--drivers/net/ethernet/ti/cpsw.c4
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);