From e616b39a16d4458224d91697b0a2599336f0c38c Mon Sep 17 00:00:00 2001
From: Sunny Kumar <sunny.kumar.roy@gmail.com>
Date: Tue, 7 Jul 2015 12:27:03 +0530
Subject: [PATCH] usb: usleep_range is preferred over udelay where wakeup is
 flexible

According to Documentation/timers/timers-howto.txt"
udelay() is only called once from a place where sleeping is allowed.
We can replace it with a call to usleep_range()
with a reasonable upper limit.

Signed-off-by: Sunny Kumar <sunny.kumar.roy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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