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* [PATCH] tpm: print tpm error code in hex for TPM2.0 devices
@ 2017-04-26 22:39 Jerry Snitselaar
       [not found] ` <20170426223954.18365-1-jsnitsel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
  0 siblings, 1 reply; 4+ messages in thread
From: Jerry Snitselaar @ 2017-04-26 22:39 UTC (permalink / raw)
  To: tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f
  Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA

For easier decoding, output the error code returned
from the tpm device in hex when the device is TPM2.0.

Cc: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: Peter Huewe <peterhuewe-Mmb7MZpHnFY@public.gmane.org>
Cc: Marcel Selhorst <tpmdd-yWjUBOtONefk1uMJSBkQmQ@public.gmane.org>
Cc: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
Reported-by: Ken Goldman <kgoldman-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Jerry Snitselaar <jsnitsel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 drivers/char/tpm/tpm-interface.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index bd2128e0b56c..b6c67eef9ae7 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -453,9 +453,14 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, const void *buf,
 		return -EFAULT;
 
 	err = be32_to_cpu(header->return_code);
-	if (err != 0 && desc)
-		dev_err(&chip->dev, "A TPM error (%d) occurred %s\n", err,
-			desc);
+	if (err != 0 && desc) {
+		if (chip->flags & TPM_CHIP_FLAG_TPM2)
+			dev_err(&chip->dev, "A TPM 2.0 error (0x%x) occurred %s\n",
+				err, desc);
+		else
+			dev_err(&chip->dev, "A TPM error (%d) occurred %s\n",
+				err, desc);
+	}
 	if (err)
 		return err;
 
-- 
2.13.0.rc0.45.ge2cb6ab84


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^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2017-04-29 11:17 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-04-26 22:39 [PATCH] tpm: print tpm error code in hex for TPM2.0 devices Jerry Snitselaar
     [not found] ` <20170426223954.18365-1-jsnitsel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-04-28 12:01   ` Jarkko Sakkinen
     [not found]     ` <20170428120149.jjxwbp6nmthk4y3q-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-04-28 17:18       ` Jerry Snitselaar
2017-04-29 11:17         ` Jarkko Sakkinen

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