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net: ethernet: fix kernel OOPS when remove davinci_mdio module 

davinci mdio device is not unregistered from mdiobus when removing
the module, which causes BUG_ON() when free the device from mdiobus.

Calling mdiobus_unregister() before mdiobus_free() fixes the issue.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bin Liu 2012-08-30 06:37:32 +00:00 committed by David S. Miller
parent 599901c3e4
commit b27393aecf
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/ti/davinci_mdio.c
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@ -394,8 +394,10 @@ static int __devexit davinci_mdio_remove(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct davinci_mdio_data *data = dev_get_drvdata(dev);
if (data->bus)
if (data->bus) {
mdiobus_unregister(data->bus);
mdiobus_free(data->bus);
}
if (data->clk)
clk_put(data->clk);