3 files changed, 19 insertions, 11 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index f26afdb..b429f1e 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1259,6 +1259,7 @@ void tpm_remove_hardware(struct device *dev)
 
 	misc_deregister(&chip->vendor.miscdev);
 	sysfs_remove_group(&dev->kobj, chip->vendor.attr_group);
+	tpm_remove_ppi(&dev->kobj);
 	tpm_bios_log_teardown(chip->bios_dir);
 
 	/* write it this way to be explicit (chip->dev == dev) */
@@ -1476,7 +1477,7 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
 		goto put_device;
 	}
 
-	if (sys_add_ppi(&dev->kobj)) {
+	if (tpm_add_ppi(&dev->kobj)) {
 		misc_deregister(&chip->vendor.miscdev);
 		goto put_device;
 	}
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 02c266a..8ef7649 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -329,10 +329,15 @@ extern int wait_for_tpm_stat(struct tpm_chip *, u8, unsigned long,
 			     wait_queue_head_t *);
 
 #ifdef CONFIG_ACPI
-extern ssize_t sys_add_ppi(struct kobject *parent);
+extern int tpm_add_ppi(struct kobject *);
+extern void tpm_remove_ppi(struct kobject *);
 #else
-static inline ssize_t sys_add_ppi(struct kobject *parent)
+static inline int tpm_add_ppi(struct kobject *parent)
 {
 	return 0;
 }
+
+static inline void tpm_remove_ppi(struct kobject *parent)
+{
+}
 #endif
diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
index f27b58c..720ebcf 100644
--- a/drivers/char/tpm/tpm_ppi.c
+++ b/drivers/char/tpm/tpm_ppi.c
@@ -444,18 +444,20 @@ static struct attribute *ppi_attrs[] = {
 	&dev_attr_vs_operations.attr, NULL,
 };
 static struct attribute_group ppi_attr_grp = {
+	.name = "ppi",
 	.attrs = ppi_attrs
 };
 
-ssize_t sys_add_ppi(struct kobject *parent)
+int tpm_add_ppi(struct kobject *parent)
 {
-	struct kobject *ppi;
-	ppi = kobject_create_and_add("ppi", parent);
-	if (sysfs_create_group(ppi, &ppi_attr_grp))
-		return -EFAULT;
-	else
-		return 0;
+	return sysfs_create_group(parent, &ppi_attr_grp);
+}
+EXPORT_SYMBOL_GPL(tpm_add_ppi);
+
+void tpm_remove_ppi(struct kobject *parent)
+{
+	sysfs_remove_group(parent, &ppi_attr_grp);
 }
-EXPORT_SYMBOL_GPL(sys_add_ppi);
+EXPORT_SYMBOL_GPL(tpm_remove_ppi);
 
 MODULE_LICENSE("GPL");