From 39a4e6608f28586dee77daf8dc3af53e7829d2a8 Mon Sep 17 00:00:00 2001 From: Yue Hin Lau Date: Thu, 5 Oct 2017 17:57:35 -0400 Subject: [PATCH] drm/amd/display: add null check for cursor functions Signed-off-by: Yue Hin Lau Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c index 4116787..10421ea 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c @@ -210,11 +210,13 @@ bool dc_stream_set_cursor_attributes( pipe_ctx->plane_res.ipp->funcs->ipp_cursor_set_attributes( pipe_ctx->plane_res.ipp, attributes); - if (pipe_ctx->plane_res.hubp != NULL) + if (pipe_ctx->plane_res.hubp != NULL && + pipe_ctx->plane_res.hubp->funcs->set_cursor_attributes != NULL) pipe_ctx->plane_res.hubp->funcs->set_cursor_attributes( pipe_ctx->plane_res.hubp, attributes); - if (pipe_ctx->plane_res.mi != NULL) + if (pipe_ctx->plane_res.mi != NULL && + pipe_ctx->plane_res.mi->funcs->set_cursor_attributes != NULL) pipe_ctx->plane_res.mi->funcs->set_cursor_attributes( pipe_ctx->plane_res.mi, attributes); @@ -253,6 +255,7 @@ bool dc_stream_set_cursor_position( for (i = 0; i < MAX_PIPES; i++) { struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i]; struct input_pixel_processor *ipp = pipe_ctx->plane_res.ipp; + struct mem_input *mi = pipe_ctx->plane_res.mi; struct hubp *hubp = pipe_ctx->plane_res.hubp; struct transform *xfm = pipe_ctx->plane_res.xfm; struct dc_cursor_position pos_cpy = *position; @@ -281,10 +284,13 @@ bool dc_stream_set_cursor_position( if (ipp->funcs->ipp_cursor_set_position != NULL) ipp->funcs->ipp_cursor_set_position(ipp, &pos_cpy, ¶m); - if (hubp != NULL) + if (mi != NULL && mi->funcs->set_cursor_position != NULL) + mi->funcs->set_cursor_position(mi, &pos_cpy, ¶m); + + if (hubp != NULL && hubp->funcs->set_cursor_position != NULL) hubp->funcs->set_cursor_position(hubp, &pos_cpy, ¶m); - if (xfm != NULL) + if (xfm != NULL && xfm->funcs->set_cursor_position != NULL) xfm->funcs->set_cursor_position(xfm, &pos_cpy, ¶m, hubp->curs_attr.width); } -- 2.7.4