It is not possible for platform_get_irq() or platform_get_irq_byname() to return 0. Use the return value from platform_get_irq() or platform_get_irq_byname(). Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com> Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>