uint16_t tmp, bios_header_start;
 
        r = amdgpu_atrm_get_bios(adev);
-       if (r == false)
+       if (!r)
                r = amdgpu_acpi_vfct_bios(adev);
-       if (r == false)
+       if (!r)
                r = igp_read_bios_from_vram(adev);
-       if (r == false)
+       if (!r)
                r = amdgpu_read_bios(adev);
-       if (r == false) {
+       if (!r) {
                r = amdgpu_read_bios_from_rom(adev);
        }
-       if (r == false) {
+       if (!r) {
                r = amdgpu_read_disabled_bios(adev);
        }
-       if (r == false) {
+       if (!r) {
                r = amdgpu_read_platform_bios(adev);
        }
-       if (r == false || adev->bios == NULL) {
+       if (!r || adev->bios == NULL) {
                DRM_ERROR("Unable to locate a BIOS ROM\n");
                adev->bios = NULL;
                return false;
 
 
        if (pi->mclk_stutter_mode_threshold &&
            (memory_clock <= pi->mclk_stutter_mode_threshold) &&
-           (pi->uvd_enabled == false) &&
+           (!pi->uvd_enabled) &&
            (RREG32(mmDPG_PIPE_STUTTER_CONTROL) & DPG_PIPE_STUTTER_CONTROL__STUTTER_ENABLE_MASK) &&
            (adev->pm.dpm.new_active_crtc_count <= 2))
                memory_level->StutterEnable = true;