perf/smmuv3: Fix hotplug callback leak in armsmmupmu_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 b131304fe722853cf26e55c4fa21fc58a36e7f21, it was introduced in version v5.2 by commit 7d839b4b9e00645e49345d6ce5dfa8edf53c1a21. For more details please see the references link.