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tpm: fix byte-order for the value read by tpm2_get_tpm_pt 

The result must be converted from BE byte order, which is used by the
TPM2 protocol. This has not popped out because tpm2_get_tpm_pt() has
been only used for probing.

Fixes: 7a1d7e6dd7 ("tpm: TPM 2.0 baseline support")
Change-Id: I7d71cd379b1a3b7659d20a1b6008216762596590
Signed-off-by: Andrey Pronin <apronin@chromium.org>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This commit is contained in:
apronin@chromium.org 2016-07-14 18:07:18 -07:00 committed by Jarkko Sakkinen
parent 79b591c091
commit 1b0612b040
1 changed files with 1 additions and 1 deletions
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2
drivers/char/tpm/tpm2-cmd.c
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@ -703,7 +703,7 @@ ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 property_id, u32 *value,
rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), desc); rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), desc);
if (!rc) if (!rc)
*value = cmd.params.get_tpm_pt_out.value; *value = be32_to_cpu(cmd.params.get_tpm_pt_out.value);
return rc; return rc;
} }