On Mon, 29 Jan 2024 17:39:54 -0800, Fenghua Yu wrote:
> file_ida is allocated during cdev open and is freed accordingly
> during cdev release. This sequence is guaranteed by driver file
> operations. Therefore, there is no need to destroy an already empty
> file_ida when the WQ cdev is removed.
>
> Worse, ida_free() in cdev release may happen after destruction of
> file_ida per WQ cdev. This can lead to accessing an id in file_ida
> after it has been destroyed, resulting in a kernel panic.
>
> [...]
Applied, thanks!
[1/1] dmaengine: idxd: Avoid unnecessary destruction of file_ida
commit: 76e43fa6a456787bad31b8d0daeabda27351a480
Best regards,
--
~Vinod
