Fix memleak in the init fail path, where if allocation or registration of MDIO bus fails, then ethernet interface is not unregistered and the private data are not freed, yet the probe function reports a failure.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Joe Hershberger joe.hershberger@ni.com Cc: Masahiro Yamada yamada.masahiro@socionext.com --- V2: No change V3: No change V4: No change --- drivers/net/smc911x.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index ceb4f81215..4459da5945 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -282,15 +282,23 @@ int smc911x_initialize(u8 dev_num, int base_addr) #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) int retval; struct mii_dev *mdiodev = mdio_alloc(); - if (!mdiodev) + 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) + if (retval < 0) { + mdio_free(mdiodev); + eth_unregister(dev); + free(dev); return retval; + } #endif
return 1;