diff options
| author | Lad, Prabhakar <prabhakar.csengg@gmail.com> | 2013-05-25 20:39:36 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-06-13 18:42:17 +0400 |
| commit | dd8c393b3c39f7ebd9ad69ce50cc836773d512b6 (patch) | |
| tree | 9d0364b9ff8de67daef444390dd26f1d85da286c /drivers/media/i2c/ths7303.c | |
| parent | 8524ce558a0111762efa1a6b5ba9ce5e092b4707 (diff) | |
| download | linux-dd8c393b3c39f7ebd9ad69ce50cc836773d512b6.tar.xz | |
[media] media: i2c: ths7303: make the pdata as a constant pointer
generally the pdata needs to be a constant pointer in the device
state structure. This patch makes the pdata as a constant pointer
and alongside returns -EINVAL when pdata is NULL.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/i2c/ths7303.c')
| -rw-r--r-- | drivers/media/i2c/ths7303.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/media/i2c/ths7303.c b/drivers/media/i2c/ths7303.c index af06187c74f8..b954195cfbe7 100644 --- a/drivers/media/i2c/ths7303.c +++ b/drivers/media/i2c/ths7303.c @@ -35,7 +35,7 @@ struct ths7303_state { struct v4l2_subdev sd; - struct ths7303_platform_data pdata; + const struct ths7303_platform_data *pdata; struct v4l2_bt_timings bt; int std_id; int stream_on; @@ -89,7 +89,7 @@ int ths7303_setval(struct v4l2_subdev *sd, enum ths7303_filter_mode mode) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ths7303_state *state = to_state(sd); - struct ths7303_platform_data *pdata = &state->pdata; + const struct ths7303_platform_data *pdata = state->pdata; u8 val, sel = 0; int err, disable = 0; @@ -356,6 +356,11 @@ static int ths7303_probe(struct i2c_client *client, struct ths7303_state *state; struct v4l2_subdev *sd; + if (pdata == NULL) { + dev_err(&client->dev, "No platform data\n"); + return -EINVAL; + } + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; @@ -367,11 +372,7 @@ static int ths7303_probe(struct i2c_client *client, if (!state) return -ENOMEM; - if (!pdata) - v4l_warn(client, "No platform data, using default data!\n"); - else - state->pdata = *pdata; - + state->pdata = pdata; sd = &state->sd; v4l2_i2c_subdev_init(sd, client, &ths7303_ops); |