drm/amd/display: Validate function returns

Status from this message: Queued for 6.6, thanks.

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#	Subject and files	Size	Replies	Applied
1/1	drm/amd/display: Validate function returns`drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c` `drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubbub.c` `drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c`	+9 -5	1 reply

The patch has a Reviewed-by or Acked-by.

Patch	Harry Wentland	Daniel Wheeler
1/1	R-b	T-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.