[PATCH 08/10] net/e1000/base: propagate PHY control register write error

[Ciara Loftus <ciara.loftus@intel.com>]

From: Dima Ruinskiy <dima.ruinskiy@intel.com>

During HV PHY workaround handling, a failure writing to the PHY control
register was silently discarded rather than returned to the caller. Add
the missing early return so the error is correctly propagated.

Fixes: 5a32a257f957 ("e1000: more NICs in base driver")
Cc: stable@dpdk.org

Signed-off-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
---
 drivers/net/intel/e1000/base/e1000_ich8lan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/intel/e1000/base/e1000_ich8lan.c b/drivers/net/intel/e1000/base/e1000_ich8lan.c
index e62847fb4e..0290a7dcb4 100644
--- a/drivers/net/intel/e1000/base/e1000_ich8lan.c
+++ b/drivers/net/intel/e1000/base/e1000_ich8lan.c
@@ -2696,6 +2696,8 @@ STATIC s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
 			e1000_phy_sw_reset_generic(hw);
 			ret_val = hw->phy.ops.write_reg(hw, PHY_CONTROL,
 							0x3140);
+			if (ret_val)
+				return ret_val;
 		}
 	}
 
-- 
2.43.0