tpm: Fix entropy harvesting logic
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Authored by kd on Sep 1 2022, 12:58 PM.

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emaste

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rGcbe3966fb9c9: tpm: Fix entropy harvesting logic
rGe23ad9c4ba2d: tpm: Fix entropy harvesting logic

Summary

Use a taskqueue instead of a callout.
Callout functions mustn't sleep, where as the TPM driver uses an sx lock in order to serialize accesses to the device.
Note that the entropy harvesting feature is not enabled by default, so this commit should not bring any functional changes to the GENERIC kernel.