linux-kernel - [PATCH] tpm: tis_i2c: Fix sanity check interrupt enable mask

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Message-Id: <20220817200333.305264-1-eajames@linux.ibm.com>
Date:   Wed, 17 Aug 2022 15:03:33 -0500
From:   Eddie James <eajames@...ux.ibm.com>
To:     linux-integrity@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Alexander.Steffen@...ineon.com,
        jgg@...pe.ca, jarkko@...nel.org, peterhuewe@....de, joel@....id.au,
        Eddie James <eajames@...ux.ibm.com>
Subject: [PATCH] tpm: tis_i2c: Fix sanity check interrupt enable mask

The sanity check mask for TPM_INT_ENABLE register was off by 8 bits,
resulting in failure to probe if the TPM_INT_ENABLE register was a
valid value.

Fixes: bbc23a07b072 ("tpm: Add tpm_tis_i2c backend for tpm_tis_core")
Signed-off-by: Eddie James <eajames@...ux.ibm.com>
---
 drivers/char/tpm/tpm_tis_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/tpm_tis_i2c.c b/drivers/char/tpm/tpm_tis_i2c.c
index 0692510dfcab..635a69dfcbbd 100644
--- a/drivers/char/tpm/tpm_tis_i2c.c
+++ b/drivers/char/tpm/tpm_tis_i2c.c
@@ -49,7 +49,7 @@
 
 /* Masks with bits that must be read zero */
 #define TPM_ACCESS_READ_ZERO 0x48
-#define TPM_INT_ENABLE_ZERO 0x7FFFFF6
+#define TPM_INT_ENABLE_ZERO 0x7FFFFF60
 #define TPM_STS_READ_ZERO 0x23
 #define TPM_INTF_CAPABILITY_ZERO 0x0FFFF000
 #define TPM_I2C_INTERFACE_CAPABILITY_ZERO 0x80000000
-- 
2.31.1