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path: root/drivers/char/tpm/tpm-dev.c
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Diffstat (limited to 'drivers/char/tpm/tpm-dev.c')
-rw-r--r--drivers/char/tpm/tpm-dev.c42
1 files changed, 6 insertions, 36 deletions
diff --git a/drivers/char/tpm/tpm-dev.c b/drivers/char/tpm/tpm-dev.c
index d9b774e02a1f..de0337ebd658 100644
--- a/drivers/char/tpm/tpm-dev.c
+++ b/drivers/char/tpm/tpm-dev.c
@@ -17,7 +17,6 @@
* License.
*
*/
-#include <linux/miscdevice.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include "tpm.h"
@@ -54,16 +53,15 @@ static void timeout_work(struct work_struct *work)
static int tpm_open(struct inode *inode, struct file *file)
{
- struct miscdevice *misc = file->private_data;
- struct tpm_chip *chip = container_of(misc, struct tpm_chip,
- vendor.miscdev);
+ struct tpm_chip *chip =
+ container_of(inode->i_cdev, struct tpm_chip, cdev);
struct file_priv *priv;
/* It's assured that the chip will be opened just once,
* by the check of is_open variable, which is protected
* by driver_lock. */
if (test_and_set_bit(0, &chip->is_open)) {
- dev_dbg(chip->dev, "Another process owns this TPM\n");
+ dev_dbg(chip->pdev, "Another process owns this TPM\n");
return -EBUSY;
}
@@ -81,7 +79,7 @@ static int tpm_open(struct inode *inode, struct file *file)
INIT_WORK(&priv->work, timeout_work);
file->private_data = priv;
- get_device(chip->dev);
+ get_device(chip->pdev);
return 0;
}
@@ -168,12 +166,12 @@ static int tpm_release(struct inode *inode, struct file *file)
file->private_data = NULL;
atomic_set(&priv->data_pending, 0);
clear_bit(0, &priv->chip->is_open);
- put_device(priv->chip->dev);
+ put_device(priv->chip->pdev);
kfree(priv);
return 0;
}
-static const struct file_operations tpm_fops = {
+const struct file_operations tpm_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.open = tpm_open,
@@ -182,32 +180,4 @@ static const struct file_operations tpm_fops = {
.release = tpm_release,
};
-int tpm_dev_add_device(struct tpm_chip *chip)
-{
- int rc;
- chip->vendor.miscdev.fops = &tpm_fops;
- if (chip->dev_num == 0)
- chip->vendor.miscdev.minor = TPM_MINOR;
- else
- chip->vendor.miscdev.minor = MISC_DYNAMIC_MINOR;
-
- chip->vendor.miscdev.name = chip->devname;
- chip->vendor.miscdev.parent = chip->dev;
-
- rc = misc_register(&chip->vendor.miscdev);
- if (rc) {
- chip->vendor.miscdev.name = NULL;
- dev_err(chip->dev,
- "unable to misc_register %s, minor %d err=%d\n",
- chip->vendor.miscdev.name,
- chip->vendor.miscdev.minor, rc);
- }
- return rc;
-}
-
-void tpm_dev_del_device(struct tpm_chip *chip)
-{
- if (chip->vendor.miscdev.name)
- misc_deregister(&chip->vendor.miscdev);
-}