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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/tpm-interface.c
parenttpm, tpmrm: Mark tpmrm_write as static (diff)
downloadlinux-dev-402149c6470d9562fe6891e0165df7f5f6bff7a7.tar.xz
linux-dev-402149c6470d9562fe6891e0165df7f5f6bff7a7.zip
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/tpm-interface.c')
-rw-r--r--drivers/char/tpm/tpm-interface.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index be5415923886..a965a9f0e5d2 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -429,8 +429,9 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space,
rc = chip->ops->send(chip, (u8 *) buf, count);
if (rc < 0) {
- dev_err(&chip->dev,
- "tpm_transmit: tpm_send: error %d\n", rc);
+ if (rc != -EPIPE)
+ dev_err(&chip->dev,
+ "%s: tpm_send: error %d\n", __func__, rc);
goto out;
}