[ Upstream commit dbb9fcc8c2d8d4ea1104f51d4947a8a8199a2cb5 ]

Manage the irq = 0 case, where we shall return an error.

Fixes: b5b5a27bee58 ("media: stm32-dcmi: return appropriate error codes during probe")
Signed-off-by: NFabien Dessenne <fabien.dessenne@st.com>
Reported-by: NPavel Machek <pavel@ucw.cz>
Acked-by: NPavel Machek <pavel@ucw.cz>
Signed-off-by: NHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>