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SubjectRe: [PATCH 2/2] mfd: smsc-ece1099: Improve a size determination in smsc_i2c_probe()
On Tue, 16 Jan 2018, SF Markus Elfring wrote:

> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Tue, 16 Jan 2018 08:58:26 +0100
>
> Replace the specification of a data structure by a pointer dereference
> as the parameter for the operator "sizeof" to make the corresponding size
> determination a bit safer according to the Linux coding style convention.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
> drivers/mfd/smsc-ece1099.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/mfd/smsc-ece1099.c b/drivers/mfd/smsc-ece1099.c
> index b9d96651cc0d..6681205dd2c0 100644
> --- a/drivers/mfd/smsc-ece1099.c
> +++ b/drivers/mfd/smsc-ece1099.c
> @@ -33,12 +33,10 @@ static const struct regmap_config smsc_regmap_config = {
> static int smsc_i2c_probe(struct i2c_client *i2c,
> const struct i2c_device_id *id)
> {
> - struct smsc *smsc;
> int devid, rev, venid_l, venid_h;
> int ret;
> + struct smsc *smsc = devm_kzalloc(&i2c->dev, sizeof(*smsc), GFP_KERNEL);

Please keep these separate.

> - smsc = devm_kzalloc(&i2c->dev, sizeof(struct smsc),
> - GFP_KERNEL);
> if (!smsc)
> return -ENOMEM;
>

--
Lee Jones
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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