The sub-device for ov7670 is registered by v4l2_async_register_subdev(). So it should be unregistered by v4l2_async_unregister_subdev() instead of v4l2_device_unregister_subdev(). Cc: Jonathan Corbet <corbet@xxxxxxx> Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx> --- drivers/media/i2c/ov7670.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c index d3f7d61..4f89a51 100644 --- a/drivers/media/i2c/ov7670.c +++ b/drivers/media/i2c/ov7670.c @@ -19,6 +19,7 @@ #include <linux/videodev2.h> #include <linux/gpio.h> #include <linux/gpio/consumer.h> +#include <media/v4l2-async.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-mediabus.h> @@ -1710,7 +1711,7 @@ static int ov7670_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov7670_info *info = to_state(sd); - v4l2_device_unregister_subdev(sd); + v4l2_async_unregister_subdev(sd); v4l2_ctrl_handler_free(&info->hdl); clk_disable_unprepare(info->clk); return 0; -- 2.7.4
