Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760808Ab0KRWnN (ORCPT ); Thu, 18 Nov 2010 17:43:13 -0500 Received: from e33.co.us.ibm.com ([32.97.110.151]:54000 "EHLO e33.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760793Ab0KRWnI (ORCPT ); Thu, 18 Nov 2010 17:43:08 -0500 From: Mimi Zohar To: linux-kernel@vger.kernel.org Cc: Mimi Zohar , linux-security-module@vger.kernel.org, keyrings@linux-nfs.org, linux-crypto@vger.kernel.org, David Howells , Jason Gunthorpe , James Morris , David Safford , Rajiv Andrade , Mimi Zohar Subject: [PATCH v1.4 2/5] tpm: add module_put wrapper Date: Thu, 18 Nov 2010 17:42:43 -0500 Message-Id: <1290120166-3132-3-git-send-email-zohar@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.2.2 In-Reply-To: <1290120166-3132-1-git-send-email-zohar@linux.vnet.ibm.com> References: <1290120166-3132-1-git-send-email-zohar@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1840 Lines: 58 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 --- 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 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); -- 1.7.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/