CVE-2026-98904

In the Linux kernel, the following vulnerability has been resolved:

mailbox: imx: Use devm pm runtime enable()

sashiko complained about early usage of the device while probe isn't completed. This can be mitigated by delaying the pm runtime enable() into the removal path instead doing it early. This ensures that in an error case the device is removed (and imx mu shutdown()) before pm runtime disable() so we don't have to do this manually.

For the order to work, lets move devm mbox controller register() until after the pm-runtime part. So the reverse order will be mbox-controller removal followed by disabling pm runtime.

Use devm pm runtime enable(), remove manual pm runtime disable() invocations and move the pm runtime handling in probe before devm mbox controller register().