Re: [PATCH] cdc-acm: Destroy acm_minors IDR on module exit

From: Johan Hovold
Date: Thu Jul 09 2015 - 04:57:05 EST


On Wed, Jul 08, 2015 at 05:25:42PM +0200, Johannes Thumshirn wrote:
> Destroy acm_minors IDR on module exit, reclaiming the allocated memory.

> Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
> ---
> drivers/usb/class/cdc-acm.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
> index 519a77b..b30e742 100644
> --- a/drivers/usb/class/cdc-acm.c
> +++ b/drivers/usb/class/cdc-acm.c
> @@ -1944,6 +1944,7 @@ static void __exit acm_exit(void)
> usb_deregister(&acm_driver);
> tty_unregister_driver(acm_tty_driver);
> put_tty_driver(acm_tty_driver);
> + idr_destroy(&acm_minors);
> }
>
> module_init(acm_init);

Acked-by: Johan Hovold <johan@xxxxxxxxxx>

No stable-tag needed as idr wasn't used before 4.2.

Thanks,
Johan
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