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Subject[PATCH 5.4 117/320] tpm: add request_locality before write TPM_INT_ENABLE
Date
From: Chen Jun <chenjun102@huawei.com>

[ Upstream commit 0ef333f5ba7f24f5d8478425c163d3097f1c7afd ]

Locality is not appropriately requested before writing the int mask.
Add the missing boilerplate.

Fixes: e6aef069b6e9 ("tpm_tis: convert to using locality callbacks")
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/tpm/tpm_tis_core.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 2fe26ec03552b..70f7859942287 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -877,7 +877,15 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
intmask |= TPM_INTF_CMD_READY_INT | TPM_INTF_LOCALITY_CHANGE_INT |
TPM_INTF_DATA_AVAIL_INT | TPM_INTF_STS_VALID_INT;
intmask &= ~TPM_GLOBAL_INT_ENABLE;
+
+ rc = request_locality(chip, 0);
+ if (rc < 0) {
+ rc = -ENODEV;
+ goto out_err;
+ }
+
tpm_tis_write32(priv, TPM_INT_ENABLE(priv->locality), intmask);
+ release_locality(chip, 0);

rc = tpm_chip_start(chip);
if (rc)
--
2.34.1


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