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media: atomisp: gc0310: Use devm_kzalloc() for data struct

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Use devm_kzalloc() to allocate the data struct. It is always free-ed as
the last step of probe-error-exit or remove, so it can be devm-managed.

This will make unwinding things easier when support is added to the gc0310
code to use standard GPIO APIs instead of the custom atomisp_gmin code.

This also allows dropping the out_free label and use direct return
on errors.

This may seem like a functional change since the out_free label also
did a v4l2_device_unregister_subdev() but at the 1 changed return
the device is not registered yet, so that always is a no-op and can
be dropped.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Hans de Goede
2023-02-05 21:53:25 +00:00
committed by Mauro Carvalho Chehab
parent 2726c899fb
commit 340b4dd6c1
1 changed files with 3 additions and 9 deletions
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12
drivers/staging/media/atomisp/i2c/atomisp-gc0310.c
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@@ -546,7 +546,7 @@ static int gc0310_probe(struct i2c_client *client)
int ret;
void *pdata;
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
dev = devm_kzalloc(&client->dev, sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
@@ -557,10 +557,8 @@ static int gc0310_probe(struct i2c_client *client)
pdata = gmin_camera_platform_data(&dev->sd,
ATOMISP_INPUT_FORMAT_RAW_8,
atomisp_bayer_order_grbg);
if (!pdata) {
ret = -EINVAL;
goto out_free;
}
if (!pdata)
return -EINVAL;
pm_runtime_set_suspended(&client->dev);
pm_runtime_enable(&client->dev);
@@ -594,10 +592,6 @@ static int gc0310_probe(struct i2c_client *client)
gc0310_remove(client);
return ret;
out_free:
v4l2_device_unregister_subdev(&dev->sd);
kfree(dev);
return ret;
}
static int gc0310_suspend(struct device *dev)