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path: root/drivers/char/tpm/tpm-sysfs.c
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Diffstat (limited to 'drivers/char/tpm/tpm-sysfs.c')
-rw-r--r--drivers/char/tpm/tpm-sysfs.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
index 8af4145d10c7..6a4056a3f7ee 100644
--- a/drivers/char/tpm/tpm-sysfs.c
+++ b/drivers/char/tpm/tpm-sysfs.c
@@ -284,6 +284,13 @@ static const struct attribute_group tpm_dev_group = {
int tpm_sysfs_add_device(struct tpm_chip *chip)
{
int err;
+
+ /* XXX: If you wish to remove this restriction, you must first update
+ * tpm_sysfs to explicitly lock chip->ops.
+ */
+ if (chip->flags & TPM_CHIP_FLAG_TPM2)
+ return 0;
+
err = sysfs_create_group(&chip->dev.parent->kobj,
&tpm_dev_group);