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authorYue Hin Lau <Yuehin.Lau@amd.com>2017-10-05 17:57:35 -0400
committerAlex Deucher <alexander.deucher@amd.com>2017-10-21 16:49:35 -0400
commit39a4e6608f28586dee77daf8dc3af53e7829d2a8 (patch)
tree35692a63aa2694408f27234363cb027d69caf3db /drivers/gpu/drm/amd
parente6f4f9cfde0f586c276190f541ecfc80d9b688bc (diff)
drm/amd/display: add null check for cursor functions
Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_stream.c14
1 files 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 411678736ed4..10421ea31373 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, &param);
- if (hubp != NULL)
+ if (mi != NULL && mi->funcs->set_cursor_position != NULL)
+ mi->funcs->set_cursor_position(mi, &pos_cpy, &param);
+
+ if (hubp != NULL && hubp->funcs->set_cursor_position != NULL)
hubp->funcs->set_cursor_position(hubp, &pos_cpy, &param);
- if (xfm != NULL)
+ if (xfm != NULL && xfm->funcs->set_cursor_position != NULL)
xfm->funcs->set_cursor_position(xfm, &pos_cpy, &param, hubp->curs_attr.width);
}