The received notification packet is held in pkg->buffer and not in pkg
itself. Fix this by using the correct buffer.
Fixes: 81a54b5e1986 ("thunderbolt: Let the connection manager handle all notifications")
Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
 
 static int tb_async_error(const struct ctl_pkg *pkg)
 {
-       const struct cfg_error_pkg *error = (const struct cfg_error_pkg *)pkg;
+       const struct cfg_error_pkg *error = pkg->buffer;
 
        if (pkg->frame.eof != TB_CFG_PKG_ERROR)
                return false;