AuxXxilium/linux_dsm_epyc7002
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net: phy: mscc: fix a possible double unlock

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On vsc8584_ptp_init failure we jump to the 'err' label, which unlocks
the MDIO bus lock. But vsc8584_ptp_init isn't called with the MDIO bus
lock taken, which could result in a double unlock. Fix this.

Fixes: ab2bf93393 ("net: phy: mscc: 1588 block initialization")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Antoine Tenart 2020-06-25 17:42:05 +02:00 committed by David S. Miller
parent 853bede848
commit b16a213b4d
1 changed files with 1 additions and 1 deletions
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2
drivers/net/phy/mscc/mscc_main.c
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@ -1436,7 +1436,7 @@ static int vsc8584_config_init(struct phy_device *phydev)
ret = vsc8584_ptp_init(phydev);
if (ret)
goto err;
return ret;
phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);