Kfree can cope with a null argument, so drop null tests.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@ expression ptr; @@
- if (ptr != NULL)
  kfree(ptr);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
                get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid);
        }
 
-       if (data != NULL)
-               kfree(data);
-       if (osfs != NULL)
-               kfree(osfs);
+       kfree(data);
+       kfree(osfs);
 
        return err;
 out_root:
        obd_disconnect(sbi->ll_md_exp);
        sbi->ll_md_exp = NULL;
 out:
-       if (data != NULL)
-               kfree(data);
-       if (osfs != NULL)
-               kfree(osfs);
+       kfree(data);
+       kfree(osfs);
        lprocfs_unregister_mountpoint(sbi);
        return err;
 }