lay in while loops

Delay in while loops
The delay in the loop should be after the change. This has very little
effect (can save one delay) but it is the right thing to do

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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