From b5b2b7ed569cedac4f5da38e08b01c88443187bd Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 2 May 2009 10:58:51 -0300 Subject: V4L/DVB (11673): v4l2-device: unregister i2c_clients when unregistering the v4l2_device. Until now I relied on i2c_del_adapter to unregister the i2c_clients for me, however, if the i2c bus is a platform bus then it is never deleted. So instead I need to unregister i2c clients when unregistering the v4l2_device. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-common.c | 1 + drivers/media/video/v4l2-device.c | 13 ++++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index e32de9e9b0f..f96475626da 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -746,6 +746,7 @@ void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client, const struct v4l2_subdev_ops *ops) { v4l2_subdev_init(sd, ops); + sd->flags |= V4L2_SUBDEV_FL_IS_I2C; /* the owner is the same as the i2c_client's driver owner */ sd->owner = client->driver->driver.owner; /* i2c_client and v4l2_subdev point to one another */ diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c index ffb425f7c24..e1520bc84f7 100644 --- a/drivers/media/video/v4l2-device.c +++ b/drivers/media/video/v4l2-device.c @@ -83,8 +83,19 @@ void v4l2_device_unregister(struct v4l2_device *v4l2_dev) v4l2_device_disconnect(v4l2_dev); /* Unregister subdevs */ - list_for_each_entry_safe(sd, next, &v4l2_dev->subdevs, list) + list_for_each_entry_safe(sd, next, &v4l2_dev->subdevs, list) { v4l2_device_unregister_subdev(sd); + if (sd->flags & V4L2_SUBDEV_FL_IS_I2C) { + struct i2c_client *client = v4l2_get_subdevdata(sd); + + /* We need to unregister the i2c client explicitly. + We cannot rely on i2c_del_adapter to always + unregister clients for us, since if the i2c bus + is a platform bus, then it is never deleted. */ + if (client) + i2c_unregister_device(client); + } + } } EXPORT_SYMBOL_GPL(v4l2_device_unregister); -- cgit v1.2.3