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authorLennert Buytenhek <buytenh@marvell.com>2008-10-08 16:29:57 -0700
committerDavid S. Miller <davem@davemloft.net>2008-10-08 16:29:57 -0700
commit298cf9beb9679522de995e249eccbd82f7c51999 (patch)
treecabbc9c696a063982aea9a24d8caa667daa33a1a /drivers/net/phy
parent18ee49ddb0d242ed1d0e273038d5e4f6de7379d3 (diff)
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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>
Diffstat (limited to 'drivers/net/phy')
-rw-r--r--drivers/net/phy/fixed.c29
-rw-r--r--drivers/net/phy/mdio-bitbang.c4
-rw-r--r--drivers/net/phy/mdio-ofgpio.c9
-rw-r--r--drivers/net/phy/mdio_bus.c24
4 files changed, 49 insertions, 17 deletions
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 @@ static int __init fixed_mdio_bus_init(void)
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;
+ fmb->mii_bus = mdiobus_alloc();
+ if (fmb->mii_bus == NULL) {
+ ret = -ENOMEM;
+ goto err_mdiobus_reg;
+ }
- ret = mdiobus_register(&fmb->mii_bus);
+ 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_reg;
+ 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 @@ static void __exit fixed_mdio_bus_exit(void)
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) {
diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c
index c01b780..2576055 100644
--- a/drivers/net/phy/mdio-bitbang.c
+++ b/drivers/net/phy/mdio-bitbang.c
@@ -165,7 +165,7 @@ struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl)
{
struct mii_bus *bus;
- bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL);
+ bus = mdiobus_alloc();
if (!bus)
return NULL;
@@ -184,7 +184,7 @@ void free_mdio_bitbang(struct mii_bus *bus)
struct mdiobb_ctrl *ctrl = bus->priv;
module_put(ctrl->ops->owner);
- kfree(bus);
+ mdiobus_free(bus);
}
EXPORT_SYMBOL(free_mdio_bitbang);
diff --git a/drivers/net/phy/mdio-ofgpio.c b/drivers/net/phy/mdio-ofgpio.c
index 27bd453..2ff9775 100644
--- a/drivers/net/phy/mdio-ofgpio.c
+++ b/drivers/net/phy/mdio-ofgpio.c
@@ -122,7 +122,7 @@ static int __devinit mdio_ofgpio_probe(struct of_device *ofdev,
new_bus = alloc_mdio_bitbang(&bitbang->ctrl);
if (!new_bus)
- goto out_free_priv;
+ goto out_free_bitbang;
new_bus->name = "GPIO Bitbanged MII",
@@ -155,9 +155,9 @@ out_free_irqs:
dev_set_drvdata(&ofdev->dev, NULL);
kfree(new_bus->irq);
out_free_bus:
- kfree(new_bus);
-out_free_priv:
free_mdio_bitbang(new_bus);
+out_free_bitbang:
+ kfree(bitbang);
out:
return ret;
}
@@ -168,11 +168,10 @@ static int mdio_ofgpio_remove(struct of_device *ofdev)
struct mdio_gpio_info *bitbang = bus->priv;
mdiobus_unregister(bus);
+ kfree(bus->irq);
free_mdio_bitbang(bus);
dev_set_drvdata(&ofdev->dev, NULL);
- kfree(bus->irq);
kfree(bitbang);
- kfree(bus);
return 0;
}
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index a7211a3..d206691 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -36,6 +36,18 @@
#include <asm/uaccess.h>
/**
+ * mdiobus_alloc - allocate a mii_bus structure
+ *
+ * Description: called by a bus driver to allocate an mii_bus
+ * structure to fill in.
+ */
+struct mii_bus *mdiobus_alloc(void)
+{
+ return kzalloc(sizeof(struct mii_bus), GFP_KERNEL);
+}
+EXPORT_SYMBOL(mdiobus_alloc);
+
+/**
* mdiobus_register - bring up all the PHYs on a given bus and attach them to bus
* @bus: target mii_bus
*
@@ -87,6 +99,18 @@ void mdiobus_unregister(struct mii_bus *bus)
}
EXPORT_SYMBOL(mdiobus_unregister);
+/**
+ * mdiobus_free - free a struct mii_bus
+ * @bus: mii_bus to free
+ *
+ * This function frees the mii_bus.
+ */
+void mdiobus_free(struct mii_bus *bus)
+{
+ kfree(bus);
+}
+EXPORT_SYMBOL(mdiobus_free);
+
struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr)
{
struct phy_device *phydev;