tpm: adjust return value of tpm_read_log

Signed-off-by: Jason Gunthorpe <[email protected]> Reviewed-by: Jarkko Sakkinen <[email protected]> Signed-off-by: Jarkko Sakkinen <[email protected]>
CostinCarabas · Nov 27, 2016 · 9430066 · 9430066
1 parent c4484f7
commit 9430066
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
@@ -381,7 +381,8 @@ static int tpm_read_log(struct tpm_chip *chip)
  * If an event log is found then the securityfs files are setup to
  * export it to userspace, otherwise nothing is done.
  *
- * Returns -ENODEV if the firmware has no event log.
+ * Returns -ENODEV if the firmware has no event log or securityfs is not
+ * supported.
  */
 int tpm_bios_log_setup(struct tpm_chip *chip)
 {
@@ -432,9 +433,10 @@ int tpm_bios_log_setup(struct tpm_chip *chip)
 	return 0;
 
 err:
+	rc = PTR_ERR(chip->bios_dir[cnt]);
 	chip->bios_dir[cnt] = NULL;
 	tpm_bios_log_teardown(chip);
-	return -EIO;
+	return rc;
 }
 
 void tpm_bios_log_teardown(struct tpm_chip *chip)