diff --git a/magick/cache.c b/magick/cache.c
index e39dedb..4e6fe16 100644
--- a/magick/cache.c
+++ b/magick/cache.c
@@ -3287,7 +3287,7 @@
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
cache_info=(CacheInfo *) image->cache;
- if (cache_info->type == UndefinedCache)
+ if ((cache_info->type == UndefinedCache) || (columns == 0) || (rows == 0))
return((const PixelPacket *) NULL);
region.x=x;
region.y=y;
@@ -3311,6 +3311,7 @@
/*
Pixel request is inside cache extents.
*/
+puts("a");
if (IsNexusInCore(cache_info,nexus_info) != MagickFalse)
return(pixels);
status=ReadPixelCachePixels(cache_info,nexus_info,exception);
@@ -5013,10 +5014,7 @@
assert(cache_info->signature == MagickSignature);
if (cache_info->type == UndefinedCache)
return((PixelPacket *) NULL);
- nexus_info->region.width=region->width == 0UL ? 1UL : region->width;
- nexus_info->region.height=region->height == 0UL ? 1UL : region->height;
- nexus_info->region.x=region->x;
- nexus_info->region.y=region->y;
+ nexus_info->region=(*region);
if ((cache_info->type != DiskCache) && (image->clip_mask == (Image *) NULL) &&
(image->mask == (Image *) NULL))
{