USB: cdc-acm: fix double free on probe failure
Johan Hovold authored
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: cae2bc76

 ("usb: cdc-acm: Decrement tty port's refcount if probe() fail")
Cc: stable@vger.kernel.org      # 4.19
Cc: Jaejoong Kim <climbbb.kim@gmail.com>
Acked-by: default avatarOliver Neukum <oneukum@suse.com>
Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210322155318.9837-2-johan@kernel.org

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
7180495c
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