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net: smc911x: Pull MII registration into separate function

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Pull the MII interface registration into separate function to avoid the
ifdeffery in smc911x_initialize(). Moreover, adjust the fail path such
that we use goto labels.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Marek Vasut 2020-03-21 17:25:41 +01:00 committed by marex
parent 9741795408
commit f51a2f8496
1 changed files with 40 additions and 24 deletions
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64
drivers/net/smc911x.c
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@ -240,12 +240,39 @@ static int smc911x_miiphy_write(struct mii_dev *bus, int phy, int devad,
return smc911x_eth_phy_write(dev, phy, reg, val);
}
static int smc911x_initialize_mii(struct eth_device *dev)
{
struct mii_dev *mdiodev = mdio_alloc();
int ret;
if (!mdiodev)
return -ENOMEM;
strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
mdiodev->read = smc911x_miiphy_read;
mdiodev->write = smc911x_miiphy_write;
ret = mdio_register(mdiodev);
if (ret < 0) {
mdio_free(mdiodev);
return ret;
}
return 0;
}
#else
static int smc911x_initialize_mii(struct eth_device *dev)
{
return 0;
}
#endif
int smc911x_initialize(u8 dev_num, int base_addr)
{
unsigned long addrl, addrh;
struct eth_device *dev;
int ret;
dev = calloc(1, sizeof(*dev));
if (!dev)
@ -254,9 +281,10 @@ int smc911x_initialize(u8 dev_num, int base_addr)
dev->iobase = base_addr;
/* Try to detect chip. Will fail if not present. */
if (smc911x_detect_chip(dev)) {
free(dev);
return 0;
ret = smc911x_detect_chip(dev);
if (ret) {
ret = 0; /* Card not detected is not an error */
goto err_detect;
}
addrh = smc911x_get_mac_csr(dev, ADDRH);
@ -279,27 +307,15 @@ int smc911x_initialize(u8 dev_num, int base_addr)
eth_register(dev);
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
int retval;
struct mii_dev *mdiodev = mdio_alloc();
if (!mdiodev) {
eth_unregister(dev);
free(dev);
return -ENOMEM;
}
strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
mdiodev->read = smc911x_miiphy_read;
mdiodev->write = smc911x_miiphy_write;
retval = mdio_register(mdiodev);
if (retval < 0) {
mdio_free(mdiodev);
eth_unregister(dev);
free(dev);
return retval;
}
#endif
ret = smc911x_initialize_mii(dev);
if (ret)
goto err_mii;
return 1;
err_mii:
eth_unregister(dev);
err_detect:
free(dev);
return ret;
}