diff options
| -rw-r--r-- | drivers/net/e1000e/ich8lan.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index dcd5db5e34e..dddd0b3dd21 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -889,8 +889,13 @@ static void e1000_release_swflag_ich8lan(struct e1000_hw *hw) u32 extcnf_ctrl; extcnf_ctrl = er32(EXTCNF_CTRL); - extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; - ew32(EXTCNF_CTRL, extcnf_ctrl); + + if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) { + extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; + ew32(EXTCNF_CTRL, extcnf_ctrl); + } else { + e_dbg("Semaphore unexpectedly released by sw/fw/hw\n"); + } mutex_unlock(&swflag_mutex); } @@ -3066,7 +3071,7 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) msleep(20); if (!ret_val) - e1000_release_swflag_ich8lan(hw); + mutex_unlock(&swflag_mutex); if (ctrl & E1000_CTRL_PHY_RST) { ret_val = hw->phy.ops.get_cfg_done(hw); |