phylib: move to dynamic allocation of struct mii_bus
This patch introduces mdiobus_alloc() and mdiobus_free(), and
makes all mdio bus drivers use these functions to allocate their
struct mii_bus'es dynamically.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Andy Fleming <afleming@freescale.com>
diff --git a/drivers/net/phy/fixed.c b/drivers/net/phy/fixed.c
index 1cec896..b5e13f8 100644
--- a/drivers/net/phy/fixed.c
+++ b/drivers/net/phy/fixed.c
@@ -24,7 +24,7 @@
struct fixed_mdio_bus {
int irqs[PHY_MAX_ADDR];
- struct mii_bus mii_bus;
+ struct mii_bus *mii_bus;
struct list_head phys;
};
@@ -213,19 +213,27 @@
goto err_pdev;
}
- snprintf(fmb->mii_bus.id, MII_BUS_ID_SIZE, "0");
- fmb->mii_bus.name = "Fixed MDIO Bus";
- fmb->mii_bus.parent = &pdev->dev;
- fmb->mii_bus.read = &fixed_mdio_read;
- fmb->mii_bus.write = &fixed_mdio_write;
- fmb->mii_bus.irq = fmb->irqs;
-
- ret = mdiobus_register(&fmb->mii_bus);
- if (ret)
+ fmb->mii_bus = mdiobus_alloc();
+ if (fmb->mii_bus == NULL) {
+ ret = -ENOMEM;
goto err_mdiobus_reg;
+ }
+
+ snprintf(fmb->mii_bus->id, MII_BUS_ID_SIZE, "0");
+ fmb->mii_bus->name = "Fixed MDIO Bus";
+ fmb->mii_bus->parent = &pdev->dev;
+ fmb->mii_bus->read = &fixed_mdio_read;
+ fmb->mii_bus->write = &fixed_mdio_write;
+ fmb->mii_bus->irq = fmb->irqs;
+
+ ret = mdiobus_register(fmb->mii_bus);
+ if (ret)
+ goto err_mdiobus_alloc;
return 0;
+err_mdiobus_alloc:
+ mdiobus_free(fmb->mii_bus);
err_mdiobus_reg:
platform_device_unregister(pdev);
err_pdev:
@@ -238,7 +246,8 @@
struct fixed_mdio_bus *fmb = &platform_fmb;
struct fixed_phy *fp, *tmp;
- mdiobus_unregister(&fmb->mii_bus);
+ mdiobus_unregister(fmb->mii_bus);
+ mdiobus_free(fmb->mii_bus);
platform_device_unregister(pdev);
list_for_each_entry_safe(fp, tmp, &fmb->phys, node) {
