svn commit: r249504 - head/sys/dev/netmap

[Luigi Rizzo]

Author: luigi
Date: Mon Apr 15 11:49:16 2013
New Revision: 249504
URL: http://svnweb.freebsd.org/changeset/base/249504

Log:
  fix a bug in the computation of the userspace offset for a give netmap buffer.
  
  Submitted by: Hugh Nhan

Modified:
  head/sys/dev/netmap/netmap_mem2.c

Modified: head/sys/dev/netmap/netmap_mem2.c
==============================================================================
--- head/sys/dev/netmap/netmap_mem2.c	Mon Apr 15 07:01:20 2013	(r249503)
+++ head/sys/dev/netmap/netmap_mem2.c	Mon Apr 15 11:49:16 2013	(r249504)
@@ -278,7 +278,7 @@ netmap_obj_offset(struct netmap_obj_pool
 		const char *base = p->lut[i].vaddr;
 		ssize_t relofs = (const char *) vaddr - base;
 
-		if (relofs < 0 || relofs > p->_clustsize)
+		if (relofs < 0 || relofs >= p->_clustsize)
 			continue;
 
 		ofs = ofs + relofs;