Re: [PATCH v2] scsi: ufs: core: cancel RTC work in active-active suspend
From: Bean Huo
Date: Wed Jul 15 2026 - 08:16:59 EST
On Wed, 2026-07-15 at 01:27 +0800, Guangshuo Li wrote:
> controller.
>
> A previous change moved the RTC work cancellation before the PRE_CHANGE
> vendor suspend callback to close a race in the common suspend path.
> However, the active-active path jumps directly to vops_suspend after
> flushing exception handling work and therefore bypasses the
> cancellation.
>
> If the RTC work runs while the vendor suspend callback is gating or
> otherwise changing hardware state, it can access the controller during
> suspend and trigger an SError.
>
> Cancel the RTC work before entering the vendor suspend callback in the
> active-active path. Since this path now cancels the work, move the RTC
> work scheduling outside the device and link state restoration block in
> the resume path. This restarts RTC updates after an active-active
> suspend and resume cycle.
>
> Fixes: b0bd84c39289 ("scsi: ufs: core: Fix SError in ufshcd_rtc_work() during
> UFS suspend")
> Signed-off-by: Guangshuo Li <lgs201920130244@xxxxxxxxx>
Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx>