An unexpected status from TPM chip is not irrecovable failure of the kernel. It's only undesirable situation. Thus, change the WARN_ONCE() instance inside tpm_tis_status() to dev_warn_once().
In addition: print the status in the log message because it is actually useful information lacking from the existing log message.
Suggested-by: Guenter Roeck linux@roeck-us.net Reviewed-by: Guenter Roeck linux@roeck-us.net Reviewed-by: Stefan Berger stefanb@linux.ibm.com Cc: stable@vger.kernel.org Fixes: 6f4f57f0b909 ("tpm: ibmvtpm: fix error return code in tpm_ibmvtpm_probe()") Signed-off-by: Jarkko Sakkinen jarkko@kernel.org --- v2: - Use dev_warn_once() instead of pr_warn_once(), as suggested by Jason. drivers/char/tpm/tpm_tis_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c index 431919d5f48a..22b6c751c33a 100644 --- a/drivers/char/tpm/tpm_tis_core.c +++ b/drivers/char/tpm/tpm_tis_core.c @@ -202,7 +202,7 @@ static u8 tpm_tis_status(struct tpm_chip *chip) * acquired. Usually because tpm_try_get_ops() hasn't * been called before doing a TPM operation. */ - WARN_ONCE(1, "TPM returned invalid status\n"); + dev_warn_once(&chip->dev, "TPM returned invalid status: 0x%x\n", status); return 0; }