From: Ruchika Kharwar <ruchika@ti.com>
Date: Thu, 6 Sep 2012 12:45:34 +0000 (+0300)
Subject: serial: omap: unlock the port lock
X-Git-Tag: omap-cleanup-sparseirq-for-v3.7~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0324a821029e1f54e7a7f8fed48693cfce42dc0e;p=pandora-kernel.git

serial: omap: unlock the port lock

This patch unlocks the port lock before calling a serial_core API
and re-acquires the port lock after calling it.
This patch fixes a system freeze issue seen when the serial_core
API uart_write_wakeup() eventually attempts to acquire the port lock
already acquired by omap serial interrupt handler.

Tested-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Ruchika Kharwar <ruchika@ti.com>
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Vijay Badawadagi <bvijay@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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