Re: [PATCH v3] hwmon: xgene: Fix crash when alarm occurs before driver probe

From	Guenter Roeck <linux@roeck-us.net>
Newsgroups	linux.kernel
Subject	Re: [PATCH v3] hwmon: xgene: Fix crash when alarm occurs before driver probe
Date	2016-09-09 06:30 +0200
Message-ID	<sflBU-6IG-11@gated-at.bofh.it> (permalink)
References	<sfawO-8aO-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 09/08/2016 09:33 AM, Hoan Tran wrote:
> The system crashes during probing xgene-hwmon driver when temperature
> alarm interrupt occurs before.
> It's because
>  - xgene_hwmon_probe() requests mailbox channel which also enables
> the mailbox interrupt.
>  - As temperature alarm interrupt is pending, ISR runs and crashes when accesses
> into invalid resourse as unmapped PCC shared memory.
>
> This patch fixes this issue by saving this alarm message and scheduling a
> bottom handler after xgene_hwmon_probe() finish.
>
> Signed-off-by: Hoan Tran <hotran@apm.com>
> Reported-by: Itaru Kitayama <itaru.kitayama@riken.jp>
> ---

Applied to -next.

Thanks,
Guenter

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[PATCH v3] hwmon: xgene: Fix crash when alarm occurs before driver probe Hoan Tran <hotran@apm.com> - 2016-09-08 18:40 +0200
  Re: [PATCH v3] hwmon: xgene: Fix crash when alarm occurs before  driver probe Guenter Roeck <linux@roeck-us.net> - 2016-09-09 06:30 +0200

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