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From: Ard Biesheuvel <ardb@kernel.org>
To: linux-efi@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>
Cc: Jerry Snitselaar <jsnitsel@redhat.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/6] efi/tpm: return -EINVAL when determining tpm final events log size fails
Date: Tue, 29 Oct 2019 18:37:51 +0100	[thread overview]
Message-ID: <20191029173755.27149-3-ardb@kernel.org> (raw)
In-Reply-To: <20191029173755.27149-1-ardb@kernel.org>

From: Jerry Snitselaar <jsnitsel@redhat.com>

Currently nothing checks the return value of efi_tpm_eventlog_init,
but in case that changes in the future make sure an error is
returned when it fails to determine the tpm final events log
size.

Fixes: e658c82be556 ("efi/tpm: Only set 'efi_tpm_final_log_size' after ...")
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 drivers/firmware/efi/tpm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/efi/tpm.c b/drivers/firmware/efi/tpm.c
index ebd7977653a8..31f9f0e369b9 100644
--- a/drivers/firmware/efi/tpm.c
+++ b/drivers/firmware/efi/tpm.c
@@ -88,6 +88,7 @@ int __init efi_tpm_eventlog_init(void)
 
 	if (tbl_size < 0) {
 		pr_err(FW_BUG "Failed to parse event in TPM Final Events Log\n");
+		ret = -EINVAL;
 		goto out_calc;
 	}
 
-- 
2.17.1


  parent reply	other threads:[~2019-10-29 17:39 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-29 17:37 [GIT PULL v2 0/6] EFI fixes for v5.4 Ard Biesheuvel
2019-10-29 17:37 ` [PATCH v2 1/6] efi: Make CONFIG_EFI_RCI2_TABLE selectable on x86 only Ard Biesheuvel
2019-10-31 11:55   ` [tip: efi/urgent] " tip-bot2 for Narendra K
2019-10-29 17:37 ` Ard Biesheuvel [this message]
2019-10-31 11:55   ` [tip: efi/urgent] efi/tpm: Return -EINVAL when determining tpm final events log size fails tip-bot2 for Jerry Snitselaar
2019-10-29 17:37 ` [PATCH v2 3/6] efi/random: treat EFI_RNG_PROTOCOL output as bootloader randomness Ard Biesheuvel
2019-10-29 19:14   ` Bhupesh Sharma
2019-10-31  8:24     ` Ard Biesheuvel
2019-10-31  8:41       ` Ingo Molnar
2019-10-31 13:47         ` Ard Biesheuvel
2019-10-31 11:55   ` [tip: efi/urgent] efi/random: Treat " tip-bot2 for Dominik Brodowski
2019-10-29 17:37 ` [PATCH v2 4/6] efi: libstub/arm: account for firmware reserved memory at the base of RAM Ard Biesheuvel
2019-10-31 11:55   ` [tip: efi/urgent] efi: libstub/arm: Account " tip-bot2 for Ard Biesheuvel
2019-10-29 17:37 ` [PATCH v2 5/6] x86, efi: never relocate kernel below lowest acceptable address Ard Biesheuvel
2019-10-31 11:55   ` [tip: efi/urgent] x86, efi: Never " tip-bot2 for Kairui Song
2019-10-29 17:37 ` [PATCH v2 6/6] efi/efi_test: lock down /dev/efi_test and require CAP_SYS_ADMIN Ard Biesheuvel
2019-10-31 11:55   ` [tip: efi/urgent] efi/efi_test: Lock " tip-bot2 for Javier Martinez Canillas

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