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USB: cdc-acm: fix double free on probe failure
commit 7180495 upstream. 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: cae2bc7 ("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: Oliver Neukum <oneukum@suse.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210322155318.9837-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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