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path: root/drivers/char/tpm/tpm-chip.c
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Diffstat (limited to 'drivers/char/tpm/tpm-chip.c')
-rw-r--r--drivers/char/tpm/tpm-chip.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index f26b0ae23bea..45cc39aabeee 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -226,21 +226,23 @@ int tpm_chip_register(struct tpm_chip *chip)
if (rc)
goto out_err;
- if (!(chip->flags & TPM_CHIP_FLAG_TPM2)) {
- rc = __compat_only_sysfs_link_entry_to_kobj(&chip->pdev->kobj,
- &chip->dev.kobj,
- "ppi");
- if (rc)
- goto out_err;
- }
-
/* Make the chip available. */
spin_lock(&driver_lock);
- list_add_rcu(&chip->list, &tpm_chip_list);
+ list_add_tail_rcu(&chip->list, &tpm_chip_list);
spin_unlock(&driver_lock);
chip->flags |= TPM_CHIP_FLAG_REGISTERED;
+ if (!(chip->flags & TPM_CHIP_FLAG_TPM2)) {
+ rc = __compat_only_sysfs_link_entry_to_kobj(&chip->pdev->kobj,
+ &chip->dev.kobj,
+ "ppi");
+ if (rc && rc != -ENOENT) {
+ tpm_chip_unregister(chip);
+ return rc;
+ }
+ }
+
return 0;
out_err:
tpm1_chip_unregister(chip);