diff options
| author | Martin Leung <martin.leung@amd.com> | 2019-10-30 14:19:30 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-14 21:38:41 -0400 |
| commit | ac78fa502afa539cce3a285e50d7fefaf4d2115e (patch) | |
| tree | d152732115458228ed89887240d9497cc2e50f0f /drivers/gpu | |
| parent | drm/amd/display: FVA timing adjustment (diff) | |
| download | linux-ac78fa502afa539cce3a285e50d7fefaf4d2115e.tar.gz linux-ac78fa502afa539cce3a285e50d7fefaf4d2115e.zip | |
drm/amd/display: Add null check to dc_submit_i2c_oem
[why]
dc_submit_i2c_oem could be called with ddc null
[how]
add null check and fail the call instead
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Martin Leung <martin.leung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 49339c5c7230..258322c39e9a 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -3477,10 +3477,13 @@ bool dc_submit_i2c_oem( struct i2c_command *cmd) { struct ddc_service *ddc = dc->res_pool->oem_device; - return dce_i2c_submit_command( - dc->res_pool, - ddc->ddc_pin, - cmd); + if (ddc) + return dce_i2c_submit_command( + dc->res_pool, + ddc->ddc_pin, + cmd); + + return false; } static bool link_add_remote_sink_helper(struct dc_link *dc_link, struct dc_sink *sink) |