[PATCH linux-next] e1000: Remove redundant statement

[luo penghao]

This statement is redundant in the context, because there will be
an identical statement next. otherwise, the variable initialization
is actually unnecessary.

The clang_analyzer complains as follows:

drivers/net/ethernet/intel/e1000/e1000_ethtool.c:1218:2 warning:

Value stored to 'ctrl_reg' is never read.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: luo penghao <luo.penghao@xxxxxxxxxx>
---
 drivers/net/ethernet/intel/e1000/e1000_ethtool.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
index 0a57172..8951f2a 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
@@ -1215,8 +1215,6 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
 		e1000_write_phy_reg(hw, PHY_CTRL, 0x8140);
 	}
 
-	ctrl_reg = er32(CTRL);
-
 	/* force 1000, set loopback */
 	e1000_write_phy_reg(hw, PHY_CTRL, 0x4140);
 
-- 
2.15.2