drm/amd/display: Add NULL plane_state check for cursor disable logic

From Nicholas Kazlauskas
cc9942840afaa3cbbb90dd41404d15125ae5d192 in linux-6.1.y/6.1.29
d29fb7baab09b6a1dc484c9c67933253883e770a in mainline linux

diff --git a/sys/dev/pci/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/sys/dev/pci/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 55d63d8..8e46f70 100644 (file)
--- a/sys/dev/pci/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/sys/dev/pci/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -3369,7 +3369,9 @@ static bool dcn10_can_pipe_disable_cursor(struct pipe_ctx *pipe_ctx)
        for (test_pipe = pipe_ctx->top_pipe; test_pipe;
             test_pipe = test_pipe->top_pipe) {
                // Skip invisible layer and pipe-split plane on same layer
-               if (!test_pipe->plane_state->visible || test_pipe->plane_state->layer_index == cur_layer)
+               if (!test_pipe->plane_state ||
+                   !test_pipe->plane_state->visible ||
+                   test_pipe->plane_state->layer_index == cur_layer)
                        continue;
 
                r2 = test_pipe->plane_res.scl_data.recout;