Re: [PATCH] iio: adc: meson_saradc: Fix memory allocation order

From: Kevin Hilman
Date: Wed Sep 04 2019 - 20:02:34 EST


Remi Pommarel <repk@xxxxxxxxxxxx> writes:

> meson_saradc's irq handler uses priv->regmap so make sure that it is
> allocated before the irq get enabled.
>
> This also fixes crash when CONFIG_DEBUG_SHIRQ is enabled, as device
> managed resources are freed in the inverted order they had been
> allocated, priv->regmap was freed before the spurious fake irq that
> CONFIG_DEBUG_SHIRQ adds called the handler.
>
> Reported-by: Elie Roudninski <xademax@xxxxxxxxx>
> Signed-off-by: Remi Pommarel <repk@xxxxxxxxxxxx>

Reviewed-by: Kevin Hilman <khilman@xxxxxxxxxxxx>