[PATCH RESEND] reset: sunxi: fix spinlock initialization

Maxime Ripard maxime.ripard at free-electrons.com
Mon Jan 12 08:17:06 PST 2015


On Mon, Jan 12, 2015 at 07:54:46AM -0800, Tyler Baker wrote:
> Call spin_lock_init() before the spinlocks are used, both in early init 
> and probe functions preventing a lockdep splat.
> 
> I have been observing lockdep complaining [1] during boot on my a80 optimus [2]
> when CONFIG_PROVE_LOCKING has been enabled. This patch resolves the splat,
> and has been tested on a few other sunxi platforms without issue.
> 
> [1] http://storage.kernelci.org/next/next-20150107/arm-multi_v7_defconfig+CONFIG_PROVE_LOCKING=y/lab-tbaker/boot-sun9i-a80-optimus.html
> [2] http://kernelci.org/boot/?a80-optimus
> 
> Signed-off-by: Tyler Baker <tyler.baker at linaro.org>
> Cc: <stable at vger.kernel.org>

Acked-by: Maxime Ripard <maxime.ripard at free-electrons.com>

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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