mtd: switch ubi_open_volume_path() to vfs_stat()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index e844887..437757c 100644 (file)
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -301,27 +301,24 @@ EXPORT_SYMBOL_GPL(ubi_open_volume_nm);
  */
 struct ubi_volume_desc *ubi_open_volume_path(const char *pathname, int mode)
 {
-       int error, ubi_num, vol_id, mod;
-       struct inode *inode;
-       struct path path;
+       int error, ubi_num, vol_id;
+       struct kstat stat;
 
        dbg_gen("open volume %s, mode %d", pathname, mode);
 
        if (!pathname || !*pathname)
                return ERR_PTR(-EINVAL);
 
-       error = kern_path(pathname, LOOKUP_FOLLOW, &path);
+       error = vfs_stat(pathname, &stat);
        if (error)
                return ERR_PTR(error);
 
-       inode = d_backing_inode(path.dentry);
-       mod = inode->i_mode;
-       ubi_num = ubi_major2num(imajor(inode));
-       vol_id = iminor(inode) - 1;
-       path_put(&path);
-
-       if (!S_ISCHR(mod))
+       if (!S_ISCHR(stat.mode))
                return ERR_PTR(-EINVAL);
+
+       ubi_num = ubi_major2num(MAJOR(stat.rdev));
+       vol_id = MINOR(stat.rdev) - 1;
+
        if (vol_id >= 0 && ubi_num >= 0)
                return ubi_open_volume(ubi_num, vol_id, mode);
        return ERR_PTR(-ENODEV);