From 12ca0be853d9133fbcdd14bf973179e6b5c73b2e Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 30 May 2018 09:34:23 -0500 Subject: [PATCH 4558/5725] drm/amdgpu/display: check if ppfuncs exists before using it Fixes a crash on asics without powerplay yet (e.g., vega20). Reviewed-by: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c index d5e6b45..5a33461 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c @@ -343,7 +343,7 @@ bool dm_pp_get_clock_levels_by_type_with_latency( struct pp_clock_levels_with_latency pp_clks = { 0 }; const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs; - if (!pp_funcs->get_clock_by_type_with_latency) + if (!pp_funcs || !pp_funcs->get_clock_by_type_with_latency) return false; if (pp_funcs->get_clock_by_type_with_latency(pp_handle, -- 2.7.4