drm/amdgpu/display: return proper error codes in dm

Replace -1 with proper error codes.

Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 47c3453..2662ab0 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -493,7 +493,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 error:
        amdgpu_dm_fini(adev);
 
-       return -1;
+       return -EINVAL;
 }
 
 static void amdgpu_dm_fini(struct amdgpu_device *adev)
@@ -548,7 +548,7 @@ static int load_dmcu_fw(struct amdgpu_device *adev)
                break;
        default:
                DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
-               return -1;
+               return -EINVAL;
        }
 
        if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
@@ -1539,7 +1539,7 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
        link_cnt = dm->dc->caps.max_links;
        if (amdgpu_dm_mode_config_init(dm->adev)) {
                DRM_ERROR("DM: Failed to initialize mode config\n");
-               return -1;
+               return -EINVAL;
        }
 
        /* Identify the number of planes to be initialized */
@@ -1654,7 +1654,7 @@ fail:
        kfree(aconnector);
        for (i = 0; i < dm->dc->caps.max_planes; i++)
                kfree(mode_info->planes[i]);
-       return -1;
+       return -EINVAL;
 }
 
 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm)