net: emaclite: Report failures in mdio setup
Be more verbose when any problem happens.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 919b983..a16dc35 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -852,8 +852,10 @@
/* Don't register the MDIO bus if the phy_node or its parent node
* can't be found.
*/
- if (!np)
+ if (!np) {
+ dev_err(dev, "Failed to register mdio bus.\n");
return -ENODEV;
+ }
/* Enable the MDIO bus by asserting the enable bit in MDIO Control
* register.
@@ -862,8 +864,10 @@
XEL_MDIOCTRL_MDIOEN_MASK);
bus = mdiobus_alloc();
- if (!bus)
+ if (!bus) {
+ dev_err(dev, "Failed to allocal mdiobus\n");
return -ENOMEM;
+ }
of_address_to_resource(np, 0, &res);
snprintf(bus->id, MII_BUS_ID_SIZE, "%.8llx",
@@ -879,8 +883,10 @@
lp->mii_bus = bus;
rc = of_mdiobus_register(bus, np);
- if (rc)
+ if (rc) {
+ dev_err(dev, "Failed to register mdio bus.\n");
goto err_register;
+ }
return 0;