tpm: use tpm_transmit_cmd() in tpm2_probe()

Jarkko Sakkinen · Jarkko Sakkinen · commit ae7e190a3e34 · 2016-09-15T16:04:21.000+03:00
It is better to tpm_transmit_cmd() in tpm2_probe() in order to get
consistent command handling throughout the subsystem.

Signed-off-by: Jarkko Sakkinen &lt;jarkko.sakkinen@linux.intel.com&gt;
Reviewed-by: Jason Gunthorpe &lt;jgunthorpe@obsidianresearch.com&gt;
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
@@ -941,11 +941,9 @@ int tpm2_probe(struct tpm_chip *chip)
 	cmd.params.get_tpm_pt_in.property_id = cpu_to_be32(0x100);
 	cmd.params.get_tpm_pt_in.property_cnt = cpu_to_be32(1);
 
-	rc = tpm_transmit(chip, (const u8 *)&cmd, sizeof(cmd), 0);
+	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd),  0, NULL);
 	if (rc <  0)
 		return rc;
-	else if (rc < TPM_HEADER_SIZE)
-		return -EFAULT;
 
 	if (be16_to_cpu(cmd.header.out.tag) == TPM2_ST_NO_SESSIONS)
 		chip->flags |= TPM_CHIP_FLAG_TPM2;
