4.4-stable review patch. If anyone has any objections, please let me know.
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From: apronin@xxxxxxxxxxxx <apronin@xxxxxxxxxxxx>
commit 1b0612b04090e416828c0dd5ed197b0913d834a0 upstream.
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: 7a1d7e6dd76a ("tpm: TPM 2.0 baseline support")
Change-Id: I7d71cd379b1a3b7659d20a1b6008216762596590
Signed-off-by: Andrey Pronin <apronin@xxxxxxxxxxxx>
Reviewed-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/char/tpm/tpm2-cmd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -657,7 +657,7 @@ ssize_t tpm2_get_tpm_pt(struct tpm_chip
rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), desc);
if (!rc)
- *value = cmd.params.get_tpm_pt_out.value;
+ *value = be32_to_cpu(cmd.params.get_tpm_pt_out.value);
return rc;
}
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