diff options
| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2021-03-02 14:15:48 +0300 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-03-03 10:51:37 -0500 |
| commit | 8e6fafd5a22e7a2eb216f5510db7aab54cc545c1 (patch) | |
| tree | f011ca9c8a1f490a834682adf4ca793160906c78 /drivers/gpu/drm/amd/pm/amdgpu_pm.c | |
| parent | drm/radeon: fix copy of uninitialized variable back to userspace (diff) | |
| download | wireguard-linux-8e6fafd5a22e7a2eb216f5510db7aab54cc545c1.tar.xz wireguard-linux-8e6fafd5a22e7a2eb216f5510db7aab54cc545c1.zip | |
drm/amd/display: Fix off by one in hdmi_14_process_transaction()
The hdcp_i2c_offsets[] array did not have an entry for
HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE so it led to an off by one
read overflow. I added an entry and copied the 0x0 value for the offset
from similar code in drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c.
I also declared several of these arrays as having HDCP_MESSAGE_ID_MAX
entries. This doesn't change the code, but it's just a belt and
suspenders approach to try future proof the code.
Fixes: 4c283fdac08a ("drm/amd/display: Add HDCP module")
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/amdgpu_pm.c')
0 files changed, 0 insertions, 0 deletions