From: Harry Wentland Date: Tue, 10 Apr 2018 20:06:34 +0000 (-0400) Subject: drm/amd/display: Use int for calculating vline start X-Git-Tag: v4.18-rc1~128^2~12^2~34 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=403dc5e8aab7b3d18a625e516698ea49d2be432e;p=users%2Fjedix%2Flinux-maple.git drm/amd/display: Use int for calculating vline start We are not sure these calculations will never need negative numbers. Use signed integers and warn and cap at 0 if this ever happens. Signed-off-by: Harry Wentland Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c index 2c5dbece928e..c734b7fa5835 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c @@ -96,10 +96,10 @@ static void optc1_disable_stereo(struct timing_generator *optc) static uint32_t get_start_vline(struct timing_generator *optc, const struct dc_crtc_timing *dc_crtc_timing) { struct dc_crtc_timing patched_crtc_timing; - uint32_t vesa_sync_start; - uint32_t asic_blank_end; - uint32_t interlace_factor; - uint32_t vertical_line_start; + int vesa_sync_start; + int asic_blank_end; + int interlace_factor; + int vertical_line_start; patched_crtc_timing = *dc_crtc_timing; optc1_apply_front_porch_workaround(optc, &patched_crtc_timing);