From 82607fbefacada141d98e4eb8b1ee55369959fa7 Mon Sep 17 00:00:00 2001 From: Carolyn Wyborny Date: Sat, 14 Dec 2013 03:26:46 -0800 Subject: [PATCH] igb: Fix for issue where values could be too high for udelay function. commit df29df92adda751ac04ca5149d30014b5199db81 upstream. This patch changes the igb_phy_has_link function to check the value of the parameter before deciding to use udelay or mdelay in order to be sure that the value is not too high for udelay function. Signed-off-by: Sunil K Pandey Signed-off-by: Kevin B Smith Signed-off-by: Carolyn Wyborny Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/igb/e1000_phy.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c index 115b0da..5dec66a 100644 --- a/drivers/net/ethernet/intel/igb/e1000_phy.c +++ b/drivers/net/ethernet/intel/igb/e1000_phy.c @@ -1595,7 +1595,10 @@ s32 igb_phy_has_link(struct e1000_hw *hw, u32 iterations, * ownership of the resources, wait and try again to * see if they have relinquished the resources yet. */ - udelay(usec_interval); + if (usec_interval >= 1000) + mdelay(usec_interval/1000); + else + udelay(usec_interval); } ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status); if (ret_val) -- 2.7.4