From: Alan Cox <alan@linux.intel.com>
Date: Mon, 30 Nov 2009 13:18:02 +0000 (+0000)
Subject: tty: moxa: Locking clean up
X-Git-Tag: v2.6.33-rc1~310^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539;p=pandora-kernel.git

tty: moxa: Locking clean up

- The open lock is needed to fix up the case of a board reset occuring during
  tty open but too early for a sane hangup response.
- The lock can however got for other cases
- Use the port mutex for get/setserial
- Fix up the confused lack of locking on the THROTTLE and other bits in the
  private flags. Just use set/test/clear bit and it covers the cases we need

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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