Re: [PATCH 1/7] USB: cdc-acm: fix double free on probe failure

[Oliver Neukum]

Am Donnerstag, den 18.03.2021, 16:51 +0100 schrieb Johan Hovold:
> If tty-device registration fails the driver copy of any Country
> Selection functional descriptor would end up being freed twice; first
> explicitly in the error path and then again in the tty-port destructor.
> 
> Drop the first erroneous free that was left when fixing a tty-port
> resource leak.
> 
> Fixes: cae2bc768d17 ("usb: cdc-acm: Decrement tty port's refcount if probe() fail")
> Cc: stable@xxxxxxxxxxxxxxx      # 4.19
> Cc: Jaejoong Kim <climbbb.kim@xxxxxxxxx>
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Acked-by: Oliver Neukum <oneukum@xxxxxxxx>