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[media] soc-camera: don't dereference I2C client after it has been removed 

i2c_unregister_device() frees the I2C client, so, dereferencing it
afterwards is a bug, that leads to Oopses.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Guennadi Liakhovetski 2011-03-23 05:26:11 -03:00 committed by Mauro Carvalho Chehab
parent 3e31f2b945
commit c8dd707805
1 changed files with 2 additions and 1 deletions
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3
drivers/media/video/soc_camera.c
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@ -996,10 +996,11 @@ static void soc_camera_free_i2c(struct soc_camera_device *icd)
{
struct i2c_client *client =
to_i2c_client(to_soc_camera_control(icd));
struct i2c_adapter *adap = client->adapter;
dev_set_drvdata(&icd->dev, NULL);
v4l2_device_unregister_subdev(i2c_get_clientdata(client));
i2c_unregister_device(client);
i2c_put_adapter(client->adapter);
i2c_put_adapter(adap);
}
#else
#define soc_camera_init_i2c(icd, icl) (-ENODEV)