Merge branch 'ptp-vmclock-bugfixes-and-cleanups-for-error-handling'

 says:

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ptp: vmclock: bugfixes and cleanups for error handling

Some error handling issues I noticed while looking at the code.

Only compile-tested.

v1: https://lore.kernel.org/r/20250206-vmclock-probe-v1-0-17a3ea07be34@linutronix.de

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
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Link: https://patch.msgid.link/20250207-vmclock-probe-v2-0-bc2fce0bdf07@linutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>