devm_kasprintf() may fail, so we should better add a NULL check
and propagate an error on failure.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Acked-by: NYangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: NLi Yang <leoyang.li@nxp.com>