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rfcomm dev could be deleted in tty_hangup, so we must not call rfcomm_dev_del again to prevent from destroying rfcomm dev before tty close. Signed-off-by: Dave Young <hidave.darkstar@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>