ALSA: mts64: fix possible null-ptr-defer in sndmts64interrupt
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 v5.15.86 by commit cba633b24a98d957e8190ef8bc4d4cdb4f6e9313, it was introduced in version v2.6.19 by commit 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad. For more details please see the references link.