igb: fix uninitialized variables

[ Upstream commit e4c39f7926b4de355f7df75651d75003806aae09 ]

This patch fixes the variable 'phy_word' may be used uninitialized.

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/intel/igb/e1000_i210.c b/drivers/net/ethernet/intel/igb/e1000_i210.c
index 07d48f2e33699e45ea385e148dd4771a4ac04e1f..6766081f5ab959381d11ea727681392cd36d64c2 100644 (file)
--- a/drivers/net/ethernet/intel/igb/e1000_i210.c
+++ b/drivers/net/ethernet/intel/igb/e1000_i210.c
@@ -862,6 +862,7 @@ s32 igb_pll_workaround_i210(struct e1000_hw *hw)
                nvm_word = E1000_INVM_DEFAULT_AL;
        tmp_nvm = nvm_word | E1000_INVM_PLL_WO_VAL;
        igb_write_phy_reg_82580(hw, I347AT4_PAGE_SELECT, E1000_PHY_PLL_FREQ_PAGE);
+       phy_word = E1000_PHY_PLL_UNCONF;
        for (i = 0; i < E1000_MAX_PLL_TRIES; i++) {
                /* check current state directly from internal PHY */
                igb_read_phy_reg_82580(hw, E1000_PHY_PLL_FREQ_REG, &phy_word);