From 9bb93e4cb83bb36df5bcab832515e74c42be0f67 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sat, 22 May 2021 19:16:41 +0200
Subject: [PATCH] mapuvraster.c: avoid division by zero (CID 1174340)

---
 mapuvraster.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mapuvraster.c b/mapuvraster.c
index 7dcfc77d57..1b724396fd 100644
--- a/mapuvraster.c
+++ b/mapuvraster.c
@@ -509,6 +509,8 @@ int msUVRASTERLayerWhichShapes(layerObj *layer, rectObj rect, int isQuery)
   if( CSLFetchNameValue( layer->processing, "UV_SPACING" ) != NULL ) {
     spacing =
       atoi(CSLFetchNameValue( layer->processing, "UV_SPACING" ));
+    if( spacing == 0 )
+        spacing = 32;
   }
 
   width = (int)(layer->map->width/spacing);