From 6ea4bd59fa04964160acf28d1ac641bb0afad4b6 Mon Sep 17 00:00:00 2001 From: Shirish S Date: Thu, 26 Oct 2017 11:47:42 +0530 Subject: [PATCH 2632/4131] 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 Reviewed-by: Harry Wentland Reviewed-by: Tony Cheng Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 5cf69af..572b885 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c @@ -288,7 +288,7 @@ bool dc_stream_set_cursor_position( 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, ¶m); if (mi != NULL && mi->funcs->set_cursor_position != NULL) -- 2.7.4