From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sun, 30 Apr 2006 10:13:50 +0000 (+0100)
Subject: [SERIAL] Clean up serial locking when obtaining a reference to a port
X-Git-Tag: v2.6.17-rc4~2^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68ac64cd3fd89fdaa091701f6ab98a9065e9b1b5;p=pandora-kernel.git

[SERIAL] Clean up serial locking when obtaining a reference to a port

The locking for the uart_port is over complicated, and can be
simplified if we introduce a flag to indicate that a port is "dead"
and will be removed.

This also helps the validator because it removes a case of non-nested
unlock ordering.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

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