[PATCH] tpm: ibmvtpm: Call tpm2_sessions_init() to initialize session support

[Stefan Berger]

Fix the following type of error message caused by a missing call to
tpm2_sessions_init() in the IBM vTPM driver:

[    2.987131] tpm tpm0: tpm2_load_context: failed with a TPM error 0x01C4
[    2.987140] ima: Error Communicating to TPM chip, result: -14

Fixes: d2add27cf2b8 ("tpm: Add NULL primary creation")
Signed-off-by: Stefan Berger <stef...@linux.ibm.com>
---
 drivers/char/tpm/tpm_ibmvtpm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index d3989b257f42..1e5b107d1f3b 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -698,6 +698,10 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
                rc = tpm2_get_cc_attrs_tbl(chip);
                if (rc)
                        goto init_irq_cleanup;
+
+               rc = tpm2_sessions_init(chip);
+               if (rc)
+                       goto init_irq_cleanup;
        }
 
        return tpm_chip_register(chip);
-- 
2.45.2