From: Hannes Reinecke <hare@suse.de>
Date: Mon, 3 Apr 2006 06:19:34 +0000 (+0200)
Subject: [SCSI] aic79xx bus reset update
X-Git-Tag: v2.6.17-rc2~30^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2;p=pandora-kernel.git

[SCSI] aic79xx bus reset update

As James B. correctly noted, ahd_reset_channel() in
ahd_linux_bus_reset() should be protected by ahd_lock().  However, the
main reason for not doing so was a deadlock with the interesting
polling mechanism to detect the end a bus reset.

This patch replaces the polling mechanism with a saner signalling via
flags; it also gives us the benefit of detecting any multiple calls to
ahd_reset_channel().

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

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