diff options
Diffstat (limited to 'drivers/char/tpm/tpm2-cmd.c')
| -rw-r--r-- | drivers/char/tpm/tpm2-cmd.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c index 1abe6502219f..f2f38a5ee632 100644 --- a/drivers/char/tpm/tpm2-cmd.c +++ b/drivers/char/tpm/tpm2-cmd.c @@ -456,20 +456,23 @@ static const struct tpm_input_header tpm2_shutdown_header = { * @chip: TPM chip to use. * @shutdown_type shutdown type. The value is either * TPM_SU_CLEAR or TPM_SU_STATE. - * - * 0 is returned when the operation is successful. If a negative number is - * returned it remarks a POSIX error code. If a positive number is returned - * it remarks a TPM error. */ -int tpm2_shutdown(struct tpm_chip *chip, u16 shutdown_type) +void tpm2_shutdown(struct tpm_chip *chip, u16 shutdown_type) { struct tpm2_cmd cmd; + int rc; cmd.header.in = tpm2_shutdown_header; - cmd.params.startup_in.startup_type = cpu_to_be16(shutdown_type); - return tpm_transmit_cmd(chip, &cmd, sizeof(cmd), - "stopping the TPM"); + + rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), "stopping the TPM"); + + /* In places where shutdown command is sent there's no much we can do + * except print the error code on a system failure. + */ + if (rc < 0) + dev_warn(chip->pdev, "transmit returned %d while stopping the TPM", + rc); } EXPORT_SYMBOL_GPL(tpm2_shutdown); |