From: Johan Hovold <jhovold@gmail.com>
Date: Thu, 18 Apr 2013 15:33:21 +0000 (+0200)
Subject: USB: ti_usb_3410_5052: query hardware-buffer status in chars_in_buffer
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~135^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c992cd73772bd0ef107536e8e3399d28493caa8;p=pandora-kernel.git

USB: ti_usb_3410_5052: query hardware-buffer status in chars_in_buffer

Query hardware-buffer status in chars_in_buffer should the write fifo be
empty.

This is needed to make the tty layer wait for hardware buffers to drain
on close.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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