From: Johan Hovold <jhovold@gmail.com>
Date: Thu, 2 Jan 2014 21:49:31 +0000 (+0100)
Subject: USB: ch341: only wake up MSR queue on changes
X-Git-Tag: v3.14-rc1~148^2~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d984fe91a85e49841449b120cda5a50fed1fb126;p=pandora-kernel.git

USB: ch341: only wake up MSR queue on changes

Only wake up MSR wait queue on actual modem-status changes.

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