[PATCH -next] net: ibm: remove set but not used variables 'err'

[Chen Zhou]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/ibm/emac/core.c: In function __emac_mdio_write:
drivers/net/ethernet/ibm/emac/core.c:875:9: warning:
	variable err set but not used [-Wunused-but-set-variable]

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Chen Zhou <chenzhou10@xxxxxxxxxx>
---
 drivers/net/ethernet/ibm/emac/core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index b7fc177..06248a7 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -872,7 +872,7 @@ static void __emac_mdio_write(struct emac_instance *dev, u8 id, u8 reg,
 {
 	struct emac_regs __iomem *p = dev->emacp;
 	u32 r = 0;
-	int n, err = -ETIMEDOUT;
+	int n;
 
 	mutex_lock(&dev->mdio_lock);
 
@@ -919,7 +919,6 @@ static void __emac_mdio_write(struct emac_instance *dev, u8 id, u8 reg,
 			goto bail;
 		}
 	}
-	err = 0;
  bail:
 	if (emac_has_feature(dev, EMAC_FTR_HAS_RGMII))
 		rgmii_put_mdio(dev->rgmii_dev, dev->rgmii_port);
-- 
2.7.4