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| author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2010-11-23 17:50:32 -0500 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2010-11-29 08:55:19 +1100 |
| commit | a0e39349d80d8b5deeb264fb190bd064f7063252 (patch) | |
| tree | 51269aaf15b299c2afcb1bb53bf95580769fc22a /drivers/char/tpm | |
| parent | dc88e46029486ed475c71fe1bb696d39511ac8fe (diff) | |
| download | kernel_samsung_smdk4412-a0e39349d80d8b5deeb264fb190bd064f7063252.zip kernel_samsung_smdk4412-a0e39349d80d8b5deeb264fb190bd064f7063252.tar.gz kernel_samsung_smdk4412-a0e39349d80d8b5deeb264fb190bd064f7063252.tar.bz2 | |
tpm: add module_put wrapper
For readability, define a tpm_chip_put() wrapper to call module_put().
Replace existing module_put() calls with the wrapper.
(Change based on trusted/encrypted patchset review by David Howells.)
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: David Safford <safford@watson.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'drivers/char/tpm')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 4 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm.h | 5 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 7c41335..26c09f3 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -736,7 +736,7 @@ int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf) if (chip == NULL) return -ENODEV; rc = __tpm_pcr_read(chip, pcr_idx, res_buf); - module_put(chip->dev->driver->owner); + tpm_chip_put(chip); return rc; } EXPORT_SYMBOL_GPL(tpm_pcr_read); @@ -775,7 +775,7 @@ int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) rc = transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE, "attempting extend a PCR value"); - module_put(chip->dev->driver->owner); + tpm_chip_put(chip); return rc; } EXPORT_SYMBOL_GPL(tpm_pcr_extend); diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 792868d..72ddb03 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -113,6 +113,11 @@ struct tpm_chip { #define to_tpm_chip(n) container_of(n, struct tpm_chip, vendor) +static inline void tpm_chip_put(struct tpm_chip *chip) +{ + module_put(chip->dev->driver->owner); +} + static inline int tpm_read_index(int base, int index) { outb(index, base); |