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net: emaclite: Fix MDIO bus unregister bug 

Since 'has_mdio' flag is not used,sequence insmod->rmmod-> insmod
leads to failure as MDIO unregister doesn't happen in .remove().
Fix it by checking MII bus pointer instead.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Radhey Shyam Pandey 2018-06-13 12:05:17 +05:30 committed by David S. Miller
parent 087fca595a
commit 27cad00840
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/xilinx/xilinx_emaclite.c
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@ -1191,7 +1191,7 @@ static int xemaclite_of_remove(struct platform_device *of_dev)
struct net_local *lp = netdev_priv(ndev);
/* Un-register the mii_bus, if configured */
if (lp->has_mdio) {
if (lp->mii_bus) {
mdiobus_unregister(lp->mii_bus);
mdiobus_free(lp->mii_bus);
lp->mii_bus = NULL;