linux-kernel - [PATCH 5.0 105/115] tpm: Fix the type of the return value in calc_tpm2_event

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Date:   Wed, 24 Apr 2019 19:10:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        Yue Haibing <yuehaibing@...wei.com>,
        James Morris <james.morris@...rosoft.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.0 105/115] tpm: Fix the type of the return value in calc_tpm2_event_size()

commit b9d0a85d6b2e76630cfd4c475ee3af4109bfd87a upstream

calc_tpm2_event_size() has an invalid signature because
it returns a 'size_t' where as its signature says that
it returns 'int'.

Cc: <stable@...r.kernel.org>
Fixes: 4d23cc323cdb ("tpm: add securityfs support for TPM 2.0 firmware event log")
Suggested-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Signed-off-by: Yue Haibing <yuehaibing@...wei.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Signed-off-by: James Morris <james.morris@...rosoft.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/char/tpm/eventlog/tpm2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/tpm/eventlog/tpm2.c b/drivers/char/tpm/eventlog/tpm2.c
index 1b8fa9de2cac..41b9f6c92da7 100644
--- a/drivers/char/tpm/eventlog/tpm2.c
+++ b/drivers/char/tpm/eventlog/tpm2.c
@@ -37,8 +37,8 @@
  *
  * Returns size of the event. If it is an invalid event, returns 0.
  */
-static int calc_tpm2_event_size(struct tcg_pcr_event2 *event,
-				struct tcg_pcr_event *event_header)
+static size_t calc_tpm2_event_size(struct tcg_pcr_event2 *event,
+				   struct tcg_pcr_event *event_header)
 {
 	struct tcg_efi_specid_event *efispecid;
 	struct tcg_event_field *event_field;
-- 
2.19.1