From 3935358ebcb8320965478c0e8ee070e1d65851c8 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Mon, 27 Apr 2009 22:34:54 +0000 Subject: [PATCH] igb: reconfigure mailbox timeout logic This change updates the timeout logic so that it is not possible to have a sucessful check for message and still return an error if countdown = 0. Signed-off-by: Alexander Duyck Reported-by: Juha Leppanen Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/igb/e1000_mbx.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/igb/e1000_mbx.c b/drivers/net/igb/e1000_mbx.c index 840782fb5736..ed9058eca45c 100644 --- a/drivers/net/igb/e1000_mbx.c +++ b/drivers/net/igb/e1000_mbx.c @@ -140,13 +140,13 @@ static s32 igb_poll_for_msg(struct e1000_hw *hw, u16 mbx_id) struct e1000_mbx_info *mbx = &hw->mbx; int countdown = mbx->timeout; - if (!mbx->ops.check_for_msg) + if (!countdown || !mbx->ops.check_for_msg) goto out; while (mbx->ops.check_for_msg(hw, mbx_id)) { + countdown--; if (!countdown) break; - countdown--; udelay(mbx->usec_delay); } out: @@ -165,13 +165,13 @@ static s32 igb_poll_for_ack(struct e1000_hw *hw, u16 mbx_id) struct e1000_mbx_info *mbx = &hw->mbx; int countdown = mbx->timeout; - if (!mbx->ops.check_for_ack) + if (!countdown || !mbx->ops.check_for_ack) goto out; while (mbx->ops.check_for_ack(hw, mbx_id)) { + countdown--; if (!countdown) break; - countdown--; udelay(mbx->usec_delay); } out: -- 2.39.5