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| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2020-12-18 12:14:00 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-01-20 16:38:19 -0500 |
| commit | 44a09e3d95bd2b7b0c224100f78f335859c4e193 (patch) | |
| tree | c087d109b20f8534ab74304837919d5f46e55d41 /drivers/gpu/drm/amd/display/dmub/src | |
| parent | eee9647490b6129a632058aa8c4be503443650f3 (diff) | |
| download | linux-44a09e3d95bd2b7b0c224100f78f335859c4e193.tar.gz linux-44a09e3d95bd2b7b0c224100f78f335859c4e193.tar.bz2 linux-44a09e3d95bd2b7b0c224100f78f335859c4e193.zip | |
drm/amd/display: Guard against NULL pointer deref when get_i2c_info fails
[Why]
If the BIOS table is invalid or corrupt then get_i2c_info can fail
and we dereference a NULL pointer.
[How]
Check that ddc_pin is not NULL before using it and log an error if it
is because this is unexpected.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Anson Jacob <anson.jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src')
0 files changed, 0 insertions, 0 deletions