4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Winkler, Tomas <[email protected]>

commit 2998b02b2fb58f36ccbc318b00513174e9947d8e upstream.

The tpm stack uses pdev name convention for the parent device.
Fix that also in tpm_chip_alloc().

Fixes: 3897cd9c8d1d ("tpm: Split out the devm stuff from tpmm_chip_alloc")'
Signed-off-by: Tomas Winkler <[email protected]>
Reviewed-by: Jarkko Sakkinen <[email protected]>
Tested-by: Jarkko Sakkinen <[email protected]>
Signed-off-by: Jarkko Sakkinen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/char/tpm/tpm-chip.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -140,7 +140,7 @@ static void tpm_dev_release(struct devic
  * Allocates a new struct tpm_chip instance and assigns a free
  * device number for it. Must be paired with put_device(&chip->dev).
  */
-struct tpm_chip *tpm_chip_alloc(struct device *dev,
+struct tpm_chip *tpm_chip_alloc(struct device *pdev,
                                const struct tpm_class_ops *ops)
 {
        struct tpm_chip *chip;
@@ -159,7 +159,7 @@ struct tpm_chip *tpm_chip_alloc(struct d
        rc = idr_alloc(&dev_nums_idr, NULL, 0, TPM_NUM_DEVICES, GFP_KERNEL);
        mutex_unlock(&idr_lock);
        if (rc < 0) {
-               dev_err(dev, "No available tpm device numbers\n");
+               dev_err(pdev, "No available tpm device numbers\n");
                kfree(chip);
                return ERR_PTR(rc);
        }
@@ -169,7 +169,7 @@ struct tpm_chip *tpm_chip_alloc(struct d
 
        chip->dev.class = tpm_class;
        chip->dev.release = tpm_dev_release;
-       chip->dev.parent = dev;
+       chip->dev.parent = pdev;
        chip->dev.groups = chip->groups;
 
        if (chip->dev_num == 0)
@@ -181,7 +181,7 @@ struct tpm_chip *tpm_chip_alloc(struct d
        if (rc)
                goto out;
 
-       if (!dev)
+       if (!pdev)
                chip->flags |= TPM_CHIP_FLAG_VIRTUAL;
 
        cdev_init(&chip->cdev, &tpm_fops);


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