From: Chris Park <[email protected]> [Why] Virtualization enters blue screen of death (BSoD) due to NULL res_pool object when accessing DSC encoder capability.
[How] Add NULL check to avoid blue screen of death. Reviewed-by: Aric Cyr <[email protected]> Acked-by: Alan Liu <[email protected]> Signed-off-by: Chris Park <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index bc2150f3d79b..7af153434e9e 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -2335,6 +2335,9 @@ void dc_resource_state_construct( bool dc_resource_is_dsc_encoding_supported(const struct dc *dc) { + if (dc->res_pool == NULL) + return false; + return dc->res_pool->res_cap->num_dsc > 0; } -- 2.25.1
