The print function dev_err() is redundant because
platform_get_irq() already prints an error.
Signed-off-by: NXu Wang <vulab@iscas.ac.cn>
Reviewed-by: NCai Huoqing <caihuoqing@baidu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>