Check for width==0 in restore_preview_image() to avoid floating point exception

Changelog

@@ -1,3 +1,8 @@
+2001-11-29  Oliver Schwartz <Oliver.Schwartz@gmx.de>
+
+	* preview.c: in function restore_preview_image() check for 
+	  width==0 to avoid floating point exception
+
 2001-11-04  Henning Meier-Geinitz <henning@meier-geinitz.de>
 
 	* sane-frontends-lsm: New file. Created Linux Software Map

src/preview.c

@@ -871,6 +871,8 @@ restore_preview_image (Preview *p)
 
   p->image_width = width;
   p->image_height = height;
+  if ((width == 0) || (height == 0))
+    return;
   p->image_data = malloc (3*width*height);
   if (!p->image_data)
     return;