ASoC: soc-pcm: Add NULL check in BE reparenting
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.269 by commit e7166d6821c15f3516bcac8ae3f155924da1908c. For more details please see the references link.