From: Shaohui Xie <Shaohui.Xie@freescale.com>
Date: Tue, 13 Jan 2015 02:30:31 +0000 (+0800)
Subject: net/fsl: fix a bug in xgmac_mdio
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e54bfe9d7e5823f8b460e8de371f695ada41a0c1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

net/fsl: fix a bug in xgmac_mdio

There is a bug in xgmac_mdio_read when clear the bit MDIO_STAT_ENC,
which '&' is missed in 'mdio_stat &= ~MDIO_STAT_ENC'.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
index e0fc3d1115ea..a492e5006756 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -156,7 +156,7 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
 		mdio_stat |= MDIO_STAT_ENC;
 	} else {
 		dev_addr = regnum & 0x1f;
-		mdio_stat = ~MDIO_STAT_ENC;
+		mdio_stat &= ~MDIO_STAT_ENC;
 	}
 
 	out_be32(&regs->mdio_stat, mdio_stat);