From eff9cf8d6e8b048f2f744a1cc382e213a00f3d2c Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Sat, 1 Mar 2014 20:51:03 +1300
Subject: [PATCH] [SCSI] atari_scsi: Fix sleep_on race

sleep_on is known broken and going away. The atari_scsi driver is one of
two remaining users in the falcon_get_lock() function, which is a rather
crazy piece of code. This does not attempt to fix the driver's locking
scheme in general, but at least prevents falcon_get_lock from going to
sleep when no other thread holds the same lock or tries to get it,
and we no longer schedule with irqs disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[MSch: fixed completion conditions missed in Arnds' original RFC patch]
Signed-off-by: Michael Schmitz <schmitz@debian.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: James E.J. Bottomley <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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