mg2d: check the domain size validity earlier

1 files changed, 3 insertions, 3 deletions

diff --git a/mg2d.c b/mg2d.c
index e4ba3b0..c036cf2 100644
--- a/mg2d.c
+++ b/mg2d.c
@@ -481,6 +481,9 @@ MG2DContext *mg2d_solver_alloc(size_t domain_size)
     MG2DInternal *priv;
     int ret;
 
+    if (SIZE_MAX / domain_size < domain_size)
+        return NULL;
+
     ctx = calloc(1, sizeof(*ctx));
     if (!ctx)
         return NULL;
@@ -490,9 +493,6 @@ MG2DContext *mg2d_solver_alloc(size_t domain_size)
         goto fail;
     priv = ctx->priv;
 
-    if (SIZE_MAX / domain_size < domain_size)
-        goto fail;
-
     priv->logger.log    = log_callback;
     priv->logger.opaque = ctx;