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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-08-06 15:27:09 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-08-06 15:27:09 +0300 |
| commit | 06059d5090118b047c5b6a621c8b57a068f7ce2c (patch) | |
| tree | 47431df1c04c02dfb7ecea479321142c56ad17cc /drivers/char/tpm/tpm_crb.c | |
| parent | 80aa93128653c5f2502053c0d9740b336d975667 (diff) | |
| parent | 8c10342cb48f3140d9abeadcfd2fa6625d447282 (diff) | |
| download | linux-06059d5090118b047c5b6a621c8b57a068f7ce2c.tar.xz | |
Merge tag 'topic/drm-misc-2015-07-28' into drm-intel-next-queued
We need a few core drm patches to be able to merge Maarten's series to
convert DPMS over to atomic.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm_crb.c')
| -rw-r--r-- | drivers/char/tpm/tpm_crb.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c index 44f9d20c19ac..1267322595da 100644 --- a/drivers/char/tpm/tpm_crb.c +++ b/drivers/char/tpm/tpm_crb.c @@ -233,6 +233,14 @@ static int crb_acpi_add(struct acpi_device *device) return -ENODEV; } + /* At least some versions of AMI BIOS have a bug that TPM2 table has + * zero address for the control area and therefore we must fail. + */ + if (!buf->control_area_pa) { + dev_err(dev, "TPM2 ACPI table has a zero address for the control area\n"); + return -EINVAL; + } + if (buf->hdr.length < sizeof(struct acpi_tpm2)) { dev_err(dev, "TPM2 ACPI table has wrong size"); return -EINVAL; |