From a0e39349d80d8b5deeb264fb190bd064f7063252 Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Tue, 23 Nov 2010 17:50:32 -0500 Subject: [PATCH] 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 Signed-off-by: David Safford Acked-by: David Howells Acked-by: Serge E. Hallyn Signed-off-by: James Morris --- drivers/char/tpm/tpm.c | 4 ++-- 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 7c4133582dba..26c09f3b4a74 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 792868d24f2a..72ddb031b69a 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); -- 2.39.2