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 v4.9.337 by commit affe3cea6b3148fa66796a48640664822ceccd48, it was introduced in version v2.6.29 by commit 2e4c77bea3d8b17d94f8ee382411f359b708560f. For more details please see the references link.