[PATCH 08/16] drm/amd/display: Fix BSOD with NULL check

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From: Chris Park <Chris.Park@xxxxxxx>

[Why]
CLK mgr is null for server settings.

[How]
Guard the function with NULL check.

Signed-off-by: Chris Park <Chris.Park@xxxxxxx>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx>
Acked-by: Wayne Lin <waynelin@xxxxxxx>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index e57df2f6f824..a869702d77af 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -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;
 
-- 
2.17.1

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