drivers: dio: fix possible memory leak in dio_init()
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 a0ead7e8da84f4c3759417b8e928b65e0207c646, it was introduced in version v2.6.29 by commit 2e4c77bea3d8b17d94f8ee382411f359b708560f. For more details please see the references link.