From: Andrew Lunn Date: Thu, 10 Jan 2019 23:15:21 +0000 (+0100) Subject: net: phy: marvell: Fix deadlock from wrong locking X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e0a7328fad9979104f73e19bedca821ef3262ae1;p=linux.git net: phy: marvell: Fix deadlock from wrong locking m88e1318_set_wol() takes the lock as part of phy_select_page(). Don't take the lock again with phy_read(), use the unlocked __phy_read(). Fixes: 424ca4c55121 ("net: phy: marvell: fix paged access races") Reported-by: Åke Rehnman Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller --- diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 0d6b58d1cdc05..2e12f982534f7 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -1435,7 +1435,7 @@ static int m88e1318_set_wol(struct phy_device *phydev, * before enabling it if !phy_interrupt_is_valid() */ if (!phy_interrupt_is_valid(phydev)) - phy_read(phydev, MII_M1011_IEVENT); + __phy_read(phydev, MII_M1011_IEVENT); /* Enable the WOL interrupt */ err = __phy_modify(phydev, MII_88E1318S_PHY_CSIER, 0,