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| author |   Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2021-12-17 14:18:59 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-12-28 16:03:35 -0500 |
| commit | 88eabcb8e6965b38331618f60567dfe92ad3c42c (patch) | |
| tree | aa0ce770f4a098635b68be07b52165084809c85f /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | drm/amdgpu: Send Message to SMU on aldebaran passthrough for sbr handling (diff) | |
| download | wireguard-linux-88eabcb8e6965b38331618f60567dfe92ad3c42c.tar.xz wireguard-linux-88eabcb8e6965b38331618f60567dfe92ad3c42c.zip | |
drm/amd/display: Fix USB4 null pointer dereference in update_psp_stream_config
[Why]
A porting error on a previous patch left the block of code that
causes the crash from a NULL pointer dereference.
More specifically, we try to access link_enc before it's assigned in
the USB4 case in the following assignment:
config.dio_output_idx = link_enc->transmitter - TRANSMITTER_UNIPHY_A;
[How]
That assignment occurs later depending on the ASIC version. It's only
needed on DCN31 and only after link_enc is already assigned.
Fixes: 986430446c917b ("drm/amd/display: fix a crash on USB4 over C20 PHY")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions