tracing: Fix return value of tracepidwrite()
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 v5.18.3 by commit 7a85aedb11354191920e3a03bc6f0c49034a16a3, it was introduced in version v4.4 by commit 4909010788640b7101bf50cddb7c5e60172b4433. For more details please see the references link.