linux-kernel - [PATCH] tpm: fix TPM error handling in tpm2_get_pcr

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Message-Id: <1485453430-23561-1-git-send-email-nayna@linux.vnet.ibm.com>
Date:   Thu, 26 Jan 2017 12:57:10 -0500
From:   Nayna Jain <nayna@...ux.vnet.ibm.com>
To:     tpmdd-devel@...ts.sourceforge.net
Cc:     peterhuewe@....de, tpmdd@...horst.net,
        jarkko.sakkinen@...ux.intel.com, jgunthorpe@...idianresearch.com,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, Nayna Jain <nayna@...ux.vnet.ibm.com>
Subject: [PATCH] tpm: fix TPM error handling in tpm2_get_pcr_allocation

Fixes: 75768b4(tpm: enhance TPM 2.0 PCR extend to support
multiple banks)

Signed-off-by: Nayna Jain <nayna@...ux.vnet.ibm.com>
---
 drivers/char/tpm/tpm2-cmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index 4aad84c..fa52309 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -1022,7 +1022,7 @@ static ssize_t tpm2_get_pcr_allocation(struct tpm_chip *chip)
 
 	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, 9, 0,
 			      "get tpm pcr allocation");
-	if (rc < 0)
+	if (rc)
 		goto out;
 
 	count = be32_to_cpup(
-- 
2.5.0