Re: [PATCH] mfd: kempld-core: Fix potential hang-up during boot

[Lee Jones <lee.jones@linaro.org>]

> On PXT and COMe-cPC2 boards it is observed that the hardware
> mutex is acquired but not being released during initialization.
> This can result in a hang-up during boot if the driver is built
> into the kernel.
> 
> Releasing the mutex twice if it was acquired fixes the problem.
> Subsequent request/release cycles work as expected, so the fix is
> only needed during initialization.
> 
> Reviewed-by: Michael Brunner <michael.brunner@kontron.com>
> Tested-by: Michael Brunner <michael.brunner@kontron.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  drivers/mfd/kempld-core.c |    7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)

I was going to stop taking patches for this cycle, but as this looks
like a bugfix I'll apply it, thanks.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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