From: Janusz Uzycki <j.uzycki@elproma.com.pl>
Date: Fri, 14 Nov 2014 22:24:33 +0000 (+0100)
Subject: serial: mxs-auart: fix gpio change detection on interrupt
X-Git-Tag: omap-for-v3.19/fixes-rc1~86^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08f937f4bcbe156773834935018c9bf7874a42f3;p=pandora-kernel.git

serial: mxs-auart: fix gpio change detection on interrupt

mxs_auart_modem_status() did't detect gpio's state change
because s->mctrl_prev was modified before by mctrl_gpio_get().
The patch introduces mctrl_temp variable to fix the bug.

Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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