drm/amd/display: Skip wbscl_set_scaler_filter if filter is null

From Alex Hung
e3a95f29647ae45d1ec9541cd7df64f40bf2120a in linux-6.6.y/6.6.50
c4d31653c03b90e51515b1380115d1aedad925dd in mainline linux

diff --git a/sys/dev/pci/drm/amd/display/dc/dcn20/dcn20_dwb_scl.c b/sys/dev/pci/drm/amd/display/dc/dcn20/dcn20_dwb_scl.c
index 994fb73..a0d437f 100644 (file)
--- a/sys/dev/pci/drm/amd/display/dc/dcn20/dcn20_dwb_scl.c
+++ b/sys/dev/pci/drm/amd/display/dc/dcn20/dcn20_dwb_scl.c
@@ -690,6 +690,9 @@ static void wbscl_set_scaler_filter(
        int pair;
        uint16_t odd_coef, even_coef;
 
+       if (!filter)
+               return;
+
        for (phase = 0; phase < (NUM_PHASES / 2 + 1); phase++) {
                for (pair = 0; pair < tap_pairs; pair++) {
                        even_coef = filter[phase * taps + 2 * pair];