kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup()

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

References

• https://git.kernel.org/stable/c/066ecbf1a53eb0b92b10c8df7808666be6ea5681
• https://git.kernel.org/stable/c/cf1c917bf1c761a557b26410024e90057646c049
• https://git.kernel.org/stable/c/d83d7ed260283560700d4034a80baad46620481b