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authorHans Verkuil <hverkuil@xs4all.nl>2009-05-02 10:58:51 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-06-16 18:20:51 -0300
commitb5b2b7ed569cedac4f5da38e08b01c88443187bd (patch)
treed21f735f5f50fd79ea72d176a2ec2872218ef0a2 /drivers/media/video/v4l2-device.c
parenta79b11c025a5757a5129e716e7e66dc36a2dfe21 (diff)
downloadop-kernel-dev-b5b2b7ed569cedac4f5da38e08b01c88443187bd.zip
op-kernel-dev-b5b2b7ed569cedac4f5da38e08b01c88443187bd.tar.gz
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 <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-device.c')
-rw-r--r--drivers/media/video/v4l2-device.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c
index ffb425f..e1520bc 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);
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