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authorJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2016-01-29 09:47:22 -0800
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2016-02-10 04:12:02 +0200
commit72c91ce8523ae5828fe5e4417ae0aaab53707a08 (patch)
tree51d64a8bf86fb7c814f3c94927787ee2735f53f6 /drivers/char/tpm/tpm-chip.c
parent1bd047be37d95bf65a219f4931215f71878ac060 (diff)
tpm: fix the rollback in tpm_chip_register()
Fixed the rollback and gave more self-documenting names for the functions. Fixes: d972b0523f ("tpm: fix call order in tpm-chip.c") Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> cc: stable@vger.kernel.org Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Diffstat (limited to 'drivers/char/tpm/tpm-chip.c')
-rw-r--r--drivers/char/tpm/tpm-chip.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 45cc39aabeee..1a9dcee8da5a 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -140,7 +140,7 @@ struct tpm_chip *tpmm_chip_alloc(struct device *dev,
}
EXPORT_SYMBOL_GPL(tpmm_chip_alloc);
-static int tpm_dev_add_device(struct tpm_chip *chip)
+static int tpm_add_char_device(struct tpm_chip *chip)
{
int rc;
@@ -151,7 +151,6 @@ static int tpm_dev_add_device(struct tpm_chip *chip)
chip->devname, MAJOR(chip->dev.devt),
MINOR(chip->dev.devt), rc);
- device_unregister(&chip->dev);
return rc;
}
@@ -162,13 +161,14 @@ static int tpm_dev_add_device(struct tpm_chip *chip)
chip->devname, MAJOR(chip->dev.devt),
MINOR(chip->dev.devt), rc);
+ cdev_del(&chip->cdev);
return rc;
}
return rc;
}
-static void tpm_dev_del_device(struct tpm_chip *chip)
+static void tpm_del_char_device(struct tpm_chip *chip)
{
cdev_del(&chip->cdev);
device_unregister(&chip->dev);
@@ -222,7 +222,7 @@ int tpm_chip_register(struct tpm_chip *chip)
tpm_add_ppi(chip);
- rc = tpm_dev_add_device(chip);
+ rc = tpm_add_char_device(chip);
if (rc)
goto out_err;
@@ -274,6 +274,6 @@ void tpm_chip_unregister(struct tpm_chip *chip)
sysfs_remove_link(&chip->pdev->kobj, "ppi");
tpm1_chip_unregister(chip);
- tpm_dev_del_device(chip);
+ tpm_del_char_device(chip);
}
EXPORT_SYMBOL_GPL(tpm_chip_unregister);

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