--- IO-AIO/AIO.xs	2012/08/24 15:33:40	1.222
+++ IO-AIO/AIO.xs	2012/08/28 03:13:33	1.223
@@ -191,7 +191,7 @@
   fiemap->fm_flags        = req->int2;
   fiemap->fm_extent_count = count;
 
-  if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
+  if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
     return;
 
   if (req->int3 >= 0 /* not autosizing */
@@ -220,7 +220,7 @@
       incmap->fm_flags        = fiemap->fm_flags;
       incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
 
-      if (ioctl (req->int1, FS_IOC_FIEMAP, incmap))
+      if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
         return;
 
       count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;