From: "Hon Ching \\(Vicky\\) Lo" <honclo@xxxxxxxxxxxxxxxxxx>
This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 9d75f08946e8485109458ccf16f714697c207f41 ]
tpm_ibmvtpm_probe() calls ibmvtpm_reset_crq(ibmvtpm) without having yet
set the virtual device in the ibmvtpm structure. So in ibmvtpm_reset_crq,
the phype call contains empty unit addresses, ibmvtpm->vdev->unit_address.
Signed-off-by: Hon Ching(Vicky) Lo <honclo@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Joy Latten <jmlatten@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Ashley Lai <ashley@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Fixes: 132f76294744 ("drivers/char/tpm: Add new device driver to support IBM vTPM")
Signed-off-by: Peter Huewe <peterhuewe@xxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
drivers/char/tpm/tpm_ibmvtpm.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 102463ba..643bba7 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -579,6 +579,9 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
goto cleanup;
}
+ ibmvtpm->dev = dev;
+ ibmvtpm->vdev = vio_dev;
+
crq_q = &ibmvtpm->crq_queue;
crq_q->crq_addr = (struct ibmvtpm_crq *)get_zeroed_page(GFP_KERNEL);
if (!crq_q->crq_addr) {
@@ -623,8 +626,6 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
crq_q->index = 0;
- ibmvtpm->dev = dev;
- ibmvtpm->vdev = vio_dev;
TPM_VPRIV(chip) = (void *)ibmvtpm;
spin_lock_init(&ibmvtpm->rtce_lock);
--
2.1.0
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