[PATCH] drm/amd/display: fix ptr comparison to 0

[José Pekkarinen]

This patch will address the following coccinelle warning where a pointer
is compared to 0 instead of NULL.

drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c:5423:19-20: WARNING 
comparing pointer to 0

Fixes: 7966f319c66d9 ("drm/amd/display: Introduce DML2")
Signed-off-by: José Pekkarinen <jose.pekkari...@foxhound.fi>
---
 drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c 
b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c
index 510be909cd75..7dceaa486841 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c
@@ -5420,7 +5420,7 @@ static void CalculateOutputLink(
                                        *OutBpp = TruncToValidBPP((1 - 
Downspreading / 100) * 13500, OutputLinkDPLanes, HTotal, HActive, 
PixelClockBackEnd, ForcedOutputLinkBPP, LinkDSCEnable, Output,
                                                                                
                OutputFormat, DSCInputBitPerComponent, NumberOfDSCSlices, 
(dml_uint_t)AudioSampleRate, AudioSampleLayout, ODMModeNoDSC, ODMModeDSC, 
RequiredSlots);
 
-                                       if (OutBpp == 0 && PHYCLKD32PerState < 
20000 / 32 && DSCEnable == dml_dsc_enable_if_necessary && ForcedOutputLinkBPP 
== 0) {
+                                       if (OutBpp == NULL && PHYCLKD32PerState 
< 20000 / 32 && DSCEnable == dml_dsc_enable_if_necessary && ForcedOutputLinkBPP 
== 0) {
                                                *RequiresDSC = true;
                                                LinkDSCEnable = true;
                                                *OutBpp = TruncToValidBPP((1 - 
Downspreading / 100) * 13500, OutputLinkDPLanes, HTotal, HActive, 
PixelClockBackEnd, ForcedOutputLinkBPP, LinkDSCEnable, Output,
-- 
2.39.2