diff options
| author | Pu Lehui <pulehui@huawei.com> | 2021-06-17 10:31:09 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-18 17:14:19 -0400 |
| commit | 85019b19d484b0616dd7b68ffbca2e01d28b5c8b (patch) | |
| tree | 33f38d1bd04b62313b5ea139675787edd5feac11 /drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | |
| parent | 56f221b6389e7ab99c30bbf01c71998ae92fc584 (diff) | |
drm/amd/display: Fix gcc unused variable warning
GCC reports the following warning with W=1:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_dp.c:3635:17:
warning:
variable ‘status’ set but not used [-Wunused-but-set-variable]
3635 | enum dc_status status = DC_ERROR_UNEXPECTED;
| ^~~~~~
The variable should be used for error check, let's fix it.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 5ecbe525b676..a3eeb4cda2de 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -3675,6 +3675,10 @@ bool dp_retrieve_lttpr_cap(struct dc_link *link) DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV, lttpr_dpcd_data, sizeof(lttpr_dpcd_data)); + if (status != DC_OK) { + dm_error("%s: Read LTTPR caps data failed.\n", __func__); + return false; + } link->dpcd_caps.lttpr_caps.revision.raw = lttpr_dpcd_data[DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV - |