k-quants : fix zero-weight guard in Q6_K (ref #3040)

diff --git a/k_quants.c b/k_quants.c
index 8742d4aee6f546efcc0cebbb53b918efbda0d3c0..eb702ce86acd98bf8bc4e626853bdd16437d799c 100644 (file)
--- a/k_quants.c
+++ b/k_quants.c
@@ -1089,6 +1089,7 @@ void quantize_row_q6_K_reference(const float * restrict x, block_q6_K * restrict
         if (!max_abs_scale) {
             memset(&y[i], 0, sizeof(block_q6_K));
             y[i].d = ggml_fp32_to_fp16(0.f);
+            x += QK_K;
             continue;
         }