GIT: unionfs2-2.6.27.y: Unionfs: debugging updates

[Erez Zadok]

commit 182812826b264ed2d6577720cb4a60061ebbb276
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Mon Nov 12 20:35:58 2007 -0500

    Unionfs: debugging updates
    
    Don't perform dentry+inode checks unless both are valid.
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

diff --git a/fs/unionfs/debug.c b/fs/unionfs/debug.c
index 0066ccd..8464fbb 100644
--- a/fs/unionfs/debug.c
+++ b/fs/unionfs/debug.c
@@ -299,7 +299,7 @@ check_inode:
 	 * be NULL.  But, check that all three are NULL: lower dentry, mnt,
 	 * and inode.
 	 */
-	if (S_ISDIR(inode->i_mode))
+	if (dstart >= 0 && dend >= 0 && S_ISDIR(inode->i_mode))
 		for (bindex = dstart+1; bindex < dend; bindex++) {
 			lower_inode = unionfs_lower_inode_idx(inode, bindex);
 			lower_dentry = unionfs_lower_dentry_idx(dentry,