mISDN: fix misuse of putdevice() in mISDNregister_device()
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 v4.19.267 by commit d40b35a7922f4df3767ad6fb8ef3dc86e31d7ba3, it was introduced in version v4.19.265 by commit a636fc5a7cabd05699b5692ad838c2c7a3abec7b. For more details please see the references link.