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drm/amd/display: Fix BSOD with NULL check

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[Why]
CLK mgr is null for server settings.

[How]
Guard the function with NULL check.

Signed-off-by: Chris Park <Chris.Park@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Wayne Lin <waynelin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chris Park 2021-04-13 22:25:23 -04:00 committed by Alex Deucher
parent 63de4f0413
commit b2d4b9f72f
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/core/dc.c
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@ -3274,7 +3274,7 @@ void dc_allow_idle_optimizations(struct dc *dc, bool allow)
if (dc->debug.disable_idle_power_optimizations)
return;
if (dc->clk_mgr->funcs->is_smu_present)
if (dc->clk_mgr != NULL && dc->clk_mgr->funcs->is_smu_present)
if (!dc->clk_mgr->funcs->is_smu_present(dc->clk_mgr))
return;