[PATCH 5.10 231/563] tpm: add request_locality before write TPM_INT_ENABLE

[Greg Kroah-Hartman]

From: Chen Jun <chenjun102@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Reviewed-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
Signed-off-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 b2659a4c40168..e2df1098a812f 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -994,7 +994,15 @@ 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