ell_grid_solve: initialize diff_coeffs to 0

Prevents the uninitialized items from affecting interpolation.

1 files changed, 3 insertions, 4 deletions

diff --git a/ell_grid_solve.c b/ell_grid_solve.c
index 7a883e0..cc2d7e4 100644
--- a/ell_grid_solve.c
+++ b/ell_grid_solve.c
@@ -670,10 +670,9 @@ static int arrays_alloc(EGSContext *ctx, const size_t domain_size[2])
     ctx->residual_stride = stride;
 
     for (int i = 0; i < ARRAY_ELEMS(ctx->diff_coeffs); i++) {
-        ret = posix_memalign((void**)&priv->diff_coeffs_base[i], 32,
-                             sizeof(*priv->diff_coeffs_base[i]) * arr_size);
-        if (ret != 0)
-            return -ret;
+        priv->diff_coeffs_base[i] = calloc(arr_size, sizeof(*priv->diff_coeffs_base));
+        if (!priv->diff_coeffs_base[i])
+            return -ENOMEM;
         ctx->diff_coeffs[i] = priv->diff_coeffs_base[i] + start_offset;
     }
     ctx->diff_coeffs_stride = stride;