From b790f210fe8423eff881b2a8a93ba5dbc45534d0 Mon Sep 17 00:00:00 2001
From: Michael Welling <mwelling@ieee.org>
Date: Fri, 25 Apr 2014 19:27:48 -0500
Subject: [PATCH] tty: serial: 8250_core.c Bug fix for Exar chips.
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The sleep function was updated to put the serial port to sleep only when necessary.
This appears to resolve the errant behavior of the driver as described in
Kernel Bug 61961 – "My Exar Corp. XR17C/D152 Dual PCI UART modem does not
work with 3.8.0".

Signed-off-by: Michael Welling <mwelling@ieee.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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