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qlcnic: fix a timeout loop

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The problem here is that at the end of the loop we test for if
idc->vnic_wait_limit is zero, but since idc->vnic_wait_limit-- is a
post-op, it actually ends up set to (u8)-1.  I have fixed this by
moving the decrement inside the loop.

Fixes: 486a5bc77a ('qlcnic: Add support for 83xx suspend and resume.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2015-12-15 16:56:16 +03:00 committed by David S. Miller
parent fe0be35e2c
commit 389e4e04ad
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
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@ -246,7 +246,8 @@ int qlcnic_83xx_check_vnic_state(struct qlcnic_adapter *adapter)
u32 state;
state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
while (state != QLCNIC_DEV_NPAR_OPER && idc->vnic_wait_limit--) {
while (state != QLCNIC_DEV_NPAR_OPER && idc->vnic_wait_limit) {
idc->vnic_wait_limit--;
msleep(1000);
state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
}