Re: [PATCH] scsi: ufs: Start the RTC update work later

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On Thu, 2024-10-31 at 14:26 -0700, Bart Van Assche wrote:
> External email : Please do not click links or open attachments until
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> 
> 
> The RTC update work involves runtime resuming the UFS controller.
> Hence,
> only start the RTC update work after runtime power management in the
> UFS
> driver has been fully initialized. This patch fixes the following
> kernel
> crash:
> 
> Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
> Workqueue: events ufshcd_rtc_work
> Call trace:
>  _raw_spin_lock_irqsave+0x34/0x8c (P)
>  pm_runtime_get_if_active+0x24/0x9c (L)
>  pm_runtime_get_if_active+0x24/0x9c
>  ufshcd_rtc_work+0x138/0x1b4
>  process_one_work+0x148/0x288
>  worker_thread+0x2cc/0x3d4
>  kthread+0x110/0x114
>  ret_from_fork+0x10/0x20
> 
> Reported-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> Closes: 
> https://lore.kernel.org/linux-scsi/0c0bc528-fdc2-4106-bc99-f23ae377f6f5@xxxxxxxxxx/
> Fixes: 6bf999e0eb41 ("scsi: ufs: core: Add UFS RTC support")
> Cc: Bean Huo <beanhuo@xxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
> ---
> 

Reviewed-by: Peter Wang <peter.wang@xxxxxxxxxxxx>





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