Re: [PATCH v2] scsi: ufs: core: fix devfreq deadlocks

[Martin K. Petersen]

On Mon, 16 Jan 2023 17:12:01 +0100, Johan Hovold wrote:

> There is a lock inversion and rwsem read-lock recursion in the devfreq
> target callback which can lead to deadlocks.
> 
> Specifically, ufshcd_devfreq_scale() already holds a clk_scaling_lock
> read lock when toggling the write booster, which involves taking the
> dev_cmd mutex before taking another clk_scaling_lock read lock.
> 
> [...]

Applied to 6.2/scsi-fixes, thanks!

[1/1] scsi: ufs: core: fix devfreq deadlocks
      https://git.kernel.org/mkp/scsi/c/ba81043753ff

-- 
Martin K. Petersen	Oracle Linux Engineering