gfs2: fix d_revalidate oopsen on NFS exports

can't blindly check nd->flags in ->d_revalidate() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
mariux64 · Mar 10, 2011 · 53fe924 · 53fe924
1 parent 529c5f9
commit 53fe924
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/gfs2/dentry.c b/fs/gfs2/dentry.c
@@ -44,7 +44,7 @@ static int gfs2_drevalidate(struct dentry *dentry, struct nameidata *nd)
 	int error;
 	int had_lock = 0;
 
-	if (nd->flags & LOOKUP_RCU)
+	if (nd && nd->flags & LOOKUP_RCU)
 		return -ECHILD;
 
 	parent = dget_parent(dentry);