From 1569039db0062c47c97ca0bf0c86210d26b8f412 Mon Sep 17 00:00:00 2001
From: Hao Liang <hliang1025@gmail.com>
Date: Thu, 26 Mar 2015 17:13:24 +0800
Subject: [PATCH] bfin uart: it will hang when read current y count if not
 disable dma irq

Add irq disable and enable in bfin_serial_rx_dma_timeout in case of
system hang.

This reverts part of commit 9642dbe73c8a ("serial: bfin-uart: avoid
dead lock in rx irq handler in smp kernel").

Signed-off-by: Hao Liang <hliang1025@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
Reading git-format-patch failed