[PATCH] remove duplicate get_dentry functions in various places

Various filesystem drivers have grown a get_dentry() function that's a
duplicate of lookup_one_len, except that it doesn't take a maximum length
argument and doesn't check for \0 or / in the passed in filename.

Switch all these places to use lookup_one_len.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Greg KH <greg@kroah.com>
Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index f9f9561..c3e3a95 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -453,17 +453,6 @@
 	return 0;
 }
 
-static struct dentry * get_dentry(struct dentry *parent, const char *name)
-{               
-	struct qstr qstr;
-
-	qstr.name = name;
-	qstr.len = strlen(name);
-	qstr.hash = full_name_hash(name,qstr.len);
-	return lookup_hash(&qstr,parent);
-}               
-
-
 /*
  * fs_create_by_name - create a file, given a name
  * @name:	name of file
@@ -496,7 +485,7 @@
 
 	*dentry = NULL;
 	down(&parent->d_inode->i_sem);
-	*dentry = get_dentry (parent, name);
+	*dentry = lookup_one_len(name, parent, strlen(name));
 	if (!IS_ERR(dentry)) {
 		if ((mode & S_IFMT) == S_IFDIR)
 			error = usbfs_mkdir (parent->d_inode, *dentry, mode);