From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 29 May 2007 20:53:50 +0000 (+0100)
Subject: [ARM] 4417/1: Serial: Fix AMBA drivers locking
X-Git-Tag: v2.6.22-rc4~89^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2389b272168ceec056ca1d8a870a97fa9c26e11a;p=pandora-kernel.git

[ARM] 4417/1: Serial: Fix AMBA drivers locking

The -rt patch triggered a lockdep warning in the amba serial drivers, which never
shows up on UP kernels. On SMP systems this would trigger as well.

Release the port lock before calling tty_flip_buffer_push() and reacquire it after
the call. This matches the code in the 8250 serial driver.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

Reading git-diff-tree failed