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SubjectRe: [PATCH] hwmon: Correct struct allocation style
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On 6/27/19 4:56 AM, Fabian Schindlatz wrote:
> Use sizeof(*var) instead of sizeof(struct var_type) as argument to
> kalloc() and friends to comply with the kernel coding style.
>
> Co-developed-by: Thomas Röthenbacher <thomas.roethenbacher@fau.de>
> Signed-off-by: Thomas Röthenbacher <thomas.roethenbacher@fau.de>
> Signed-off-by: Fabian Schindlatz <fabian.schindlatz@fau.de>
> Cc: linux-kernel@i4.cs.fau.de
> ---
> drivers/hwmon/acpi_power_meter.c | 2 +-
> drivers/hwmon/coretemp.c | 4 ++--
> drivers/hwmon/fschmd.c | 2 +-
> drivers/hwmon/sch56xx-common.c | 2 +-
> drivers/hwmon/via-cputemp.c | 4 ++--
> drivers/hwmon/w83793.c | 2 +-
> 6 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
> index 6ba1a08253f0..f20223e3579c 100644
> --- a/drivers/hwmon/acpi_power_meter.c
> +++ b/drivers/hwmon/acpi_power_meter.c
> @@ -862,7 +862,7 @@ static int acpi_power_meter_add(struct acpi_device *device)
> if (!device)
> return -EINVAL;
>
> - resource = kzalloc(sizeof(struct acpi_power_meter_resource),
> + resource = kzalloc(sizeof(*resource),
> GFP_KERNEL);

Continuation line is no longer necessary.

> if (!resource)
> return -ENOMEM;
> diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
> index fe6618e49dc4..0361115d25dd 100644
> --- a/drivers/hwmon/coretemp.c
> +++ b/drivers/hwmon/coretemp.c
> @@ -433,7 +433,7 @@ static struct temp_data *init_temp_data(unsigned int cpu, int pkg_flag)
> {
> struct temp_data *tdata;
>
> - tdata = kzalloc(sizeof(struct temp_data), GFP_KERNEL);
> + tdata = kzalloc(sizeof(*tdata), GFP_KERNEL);
> if (!tdata)
> return NULL;
>
> @@ -532,7 +532,7 @@ static int coretemp_probe(struct platform_device *pdev)
> struct platform_data *pdata;
>
> /* Initialize the per-zone data structures */
> - pdata = devm_kzalloc(dev, sizeof(struct platform_data), GFP_KERNEL);
> + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
> if (!pdata)
> return -ENOMEM;
>
> diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c
> index fa0c2f1fb443..d464dcbe5ac8 100644
> --- a/drivers/hwmon/fschmd.c
> +++ b/drivers/hwmon/fschmd.c
> @@ -1090,7 +1090,7 @@ static int fschmd_probe(struct i2c_client *client,
> int i, err;
> enum chips kind = id->driver_data;
>
> - data = kzalloc(sizeof(struct fschmd_data), GFP_KERNEL);
> + data = kzalloc(sizeof(*data), GFP_KERNEL);
> if (!data)
> return -ENOMEM;
>
> diff --git a/drivers/hwmon/sch56xx-common.c b/drivers/hwmon/sch56xx-common.c
> index 6c84780e358e..0d6d20814183 100644
> --- a/drivers/hwmon/sch56xx-common.c
> +++ b/drivers/hwmon/sch56xx-common.c
> @@ -401,7 +401,7 @@ struct sch56xx_watchdog_data *sch56xx_watchdog_register(struct device *parent,
> return NULL;
> }
>
> - data = kzalloc(sizeof(struct sch56xx_watchdog_data), GFP_KERNEL);
> + data = kzalloc(sizeof(*data), GFP_KERNEL);
> if (!data)
> return NULL;
>
> diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
> index 8264e849e588..338b600716a5 100644
> --- a/drivers/hwmon/via-cputemp.c
> +++ b/drivers/hwmon/via-cputemp.c
> @@ -114,7 +114,7 @@ static int via_cputemp_probe(struct platform_device *pdev)
> int err;
> u32 eax, edx;
>
> - data = devm_kzalloc(&pdev->dev, sizeof(struct via_cputemp_data),
> + data = devm_kzalloc(&pdev->dev, sizeof(*data),
> GFP_KERNEL);

Continuation line is no longer necessary.

> if (!data)
> return -ENOMEM;
> @@ -223,7 +223,7 @@ static int via_cputemp_online(unsigned int cpu)
> goto exit;
> }
>
> - pdev_entry = kzalloc(sizeof(struct pdev_entry), GFP_KERNEL);
> + pdev_entry = kzalloc(sizeof(*pdev_entry), GFP_KERNEL);
> if (!pdev_entry) {
> err = -ENOMEM;
> goto exit_device_put;
> diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
> index 46f5dfec8d0a..b37106c6f26d 100644
> --- a/drivers/hwmon/w83793.c
> +++ b/drivers/hwmon/w83793.c
> @@ -1669,7 +1669,7 @@ static int w83793_probe(struct i2c_client *client,
> int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
> int files_temp = ARRAY_SIZE(w83793_temp) / 6;
>
> - data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL);
> + data = kzalloc(sizeof(*data), GFP_KERNEL);
> if (!data) {
> err = -ENOMEM;
> goto exit;
>

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