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The current TPM TIS driver in git discards the timeout values returned from the TPM. The check of the response packet needs to consider that the return_code field is 0 on success and the size of the expected packet is equivalent to the header size + u32 length indicator for the TPM_GetCapability() result + 3 timeout indicators of type u32. I am also adding a sysfs entry 'timeouts' showing the timeouts that are being used. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Tested-by: Guillaume Chazarain <guichaz@gmail.com> Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>