svn commit: r299089 - head/sbin/fsck_msdosfs

[Pedro F. Giffuni]

Author: pfg
Date: Wed May  4 22:27:22 2016
New Revision: 299089
URL: https://svnweb.freebsd.org/changeset/base/299089

Log:
  fsck_msdosfs: Adjust a check.
  
  The on-disk FAT array does not include anything before CLUST_FIRST,
  compensate in size check.
  
  Obtained from:	NetBSD (CVS Rev. 1.20)
  MFC after:	2 weeks

Modified:
  head/sbin/fsck_msdosfs/boot.c

Modified: head/sbin/fsck_msdosfs/boot.c
==============================================================================
--- head/sbin/fsck_msdosfs/boot.c	Wed May  4 21:15:28 2016	(r299088)
+++ head/sbin/fsck_msdosfs/boot.c	Wed May  4 22:27:22 2016	(r299089)
@@ -221,7 +221,7 @@ readboot(int dosfs, struct bootblock *bo
 		break;
 	}
 
-	if (boot->NumFatEntries < boot->NumClusters) {
+	if (boot->NumFatEntries < boot->NumClusters - CLUST_FIRST) {
 		pfatal("FAT size too small, %u entries won't fit into %u sectors\n",
 		       boot->NumClusters, boot->FATsecs);
 		return FSFATAL;