ARM: exynos: Fix refcount leak in exynosmappmu
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 v5.4.202 by commit f9b77a52937582a5b99a5a07e4ef1e2f48f87347, it was introduced in version v3.17 by commit fce9e5bb25264153f9f002eada41757118d25ba9. For more details please see the references link.