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Commit 55d9038b authored Oct 26, 2017 by Shirish S Committed by Alex Deucher Nov 02, 2017

drm/amd/display: fix null pointer dereference



While setting cursor position in case of mpo,
input_pixel_processor is not available for underlay,
hence add check of the same to avoid null pointer
access issue.

Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent f5ba60fe

drivers/gpu/drm/amd/display/dc/core/dc_stream.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -288,7 +288,7 @@ bool dc_stream_set_cursor_position(
	pos_cpy.enable = false;		pos_cpy.enable = false;


	if (ipp->funcs->ipp_cursor_set_position != NULL)		if (ipp !=NULL && ipp->funcs->ipp_cursor_set_position != NULL)
	ipp->funcs->ipp_cursor_set_position(ipp, &pos_cpy, &param);		ipp->funcs->ipp_cursor_set_position(ipp, &pos_cpy, &param);

	if (mi != NULL && mi->funcs->set_cursor_position != NULL)		if (mi != NULL && mi->funcs->set_cursor_position != NULL)