[PATCH 11/24] drm/amd/display: Add NULL check within get_target_mpc_factor

[Roman.Li]

From: Hersen Wu <hersenxs...@amd.com>

[Why] Coverity reports NULL_RETURN warning.

[How] Add pointer NULL check.

Reviewed-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Signed-off-by: Hersen Wu <hersenxs...@amd.com>
---
 .../gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c  | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c 
b/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
index 190fa2962271..02fb2cb1c43c 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
@@ -819,7 +819,16 @@ static unsigned int get_target_mpc_factor(struct 
dml2_context *ctx,
 
                        /* get stream id of main stream */
                        main_stream = 
ctx->config.svp_pstate.callbacks.get_paired_subvp_stream(state, stream);
+                       if (!main_stream) {
+                               ASSERT(false);
+                               return 1;
+                       }
+
                        main_stream_status = 
ctx->config.callbacks.get_stream_status(state, main_stream);
+                       if (!main_stream_status) {
+                               ASSERT(false);
+                               return 1;
+                       }
 
                        /* get plane id for associated main plane */
                        get_plane_id(ctx, state, 
main_stream_status->plane_states[plane_idx],
-- 
2.34.1