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authorStefan Berger <stefanb@linux.vnet.ibm.com>2017-05-25 18:29:13 -0400
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2017-06-13 22:02:09 +0300
commit402149c6470d9562fe6891e0165df7f5f6bff7a7 (patch)
treeb03b166b161f20cae1a889deb64ed9f734e9a305 /drivers/char/tpm/tpm2-cmd.c
parent5e9fefd26b47205e423b23c3f0a41b068c84fa1d (diff)
tpm: vtpm_proxy: Suppress error logging when in closed state
Suppress the error logging when the core TPM driver sends commands to the VTPM proxy driver and -EPIPE is returned in case the VTPM proxy driver is 'closed' (closed anonymous file descriptor). This error code is only returned by the send function and by tpm_transmit when the VTPM proxy driver is being used. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm2-cmd.c')
-rw-r--r--drivers/char/tpm/tpm2-cmd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index 3ee6883f26c1..3a9964326279 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -840,7 +840,7 @@ void tpm2_shutdown(struct tpm_chip *chip, u16 shutdown_type)
/* 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)
+ if (rc < 0 && rc != -EPIPE)
dev_warn(&chip->dev, "transmit returned %d while stopping the TPM",
rc);
}