From: jarkko@kernel.org
To: linux-integrity@vger.kernel.org
Cc: Jarkko Sakkinen <jarkko@kernel.org>,
Guenter Roeck <linux@roeck-us.net>,
stable@vger.kernel.org, Peter Huewe <peterhuewe@gmx.de>,
Jason Gunthorpe <jgg@ziepe.ca>,
Stefan Berger <stefanb@linux.ibm.com>,
Wang Hai <wanghai38@huawei.com>
Subject: [PATCH] tpm: WARN_ONCE() -> pr_warn_once() in tpm_tis_status()
Date: Tue, 2 Feb 2021 17:33:17 +0200 [thread overview]
Message-ID: <20210202153317.57749-1-jarkko@kernel.org> (raw)
From: Jarkko Sakkinen <jarkko@kernel.org>
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 pr_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>
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>
---
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..21f67c6366cb 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");
+ pr_warn_once("TPM returned invalid status: 0x%x\n", status);
return 0;
}
--
2.30.0
next reply other threads:[~2021-02-02 15:36 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-02 15:33 jarkko [this message]
2021-02-02 15:43 ` [PATCH] tpm: WARN_ONCE() -> pr_warn_once() in tpm_tis_status() Guenter Roeck
2021-02-02 22:05 ` Jarkko Sakkinen
2021-02-02 16:05 ` Stefan Berger
2021-02-02 22:06 ` Jarkko Sakkinen
2021-02-02 16:46 ` Jason Gunthorpe
2021-02-02 22:25 ` Jarkko Sakkinen
2021-02-02 17:26 ` Serge E. Hallyn
2021-02-02 17:58 ` James Bottomley
2021-02-02 22:27 ` Jarkko Sakkinen
2021-02-02 22:29 ` Jarkko Sakkinen
2021-02-02 23:00 ` James Bottomley
2021-02-03 0:01 ` Jarkko Sakkinen
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