From: Michael Schmitz <schmitz...@gmail.com>
Date: Sat,  1 Feb 2014 13:48:13 +1300

> On m68k, host->get_lock is used to both lock and register the interrupt
> that the IDE host shares with other device drivers. Registering the
> IDE interrupt handler in ide-probe.c results in duplicating the
> interrupt registered (once via host->get lock, and also via init_irq()),
> and may result in IDE accepting interrupts even when another driver has
> locked the interrupt hardware. This opens the whole locking scheme up
> to races.
> 
> host->get_lock is set on m68k only, so other drivers' behaviour is not
> changed.
> 
> Signed-off-by: Michael Schmitz <schm...@debian.org>

It's a bit kludgy, but minimal and correct.

Applied, thank you.
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