Hi,
On Sun, Feb 17, 2019 at 05:41:55PM +0000, Vadim Pasternak wrote:
> Fix tps53679_probe() by using dynamically allocated "pmbus_driver_info"
> structure instead of static. Usage of static structures causes
> overwritten of the field "vrm_version", in case the system is equipped
> with several tps53679 devices with the different "vrm_version".
> In such case the last probed device overwrites this field for all
> others.
>
> Fixes: 610526527a13 ("hwmon: (pmbus) Add support for Texas Instruments
> tps53679 device")
> Signed-off-by: Vadim Pasternak <[email protected]>
> ---
> drivers/hwmon/pmbus/tps53679.c | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/hwmon/pmbus/tps53679.c b/drivers/hwmon/pmbus/tps53679.c
> index 85b515cd9df0..45eacc504e2f 100644
> --- a/drivers/hwmon/pmbus/tps53679.c
> +++ b/drivers/hwmon/pmbus/tps53679.c
> @@ -80,7 +80,15 @@ static struct pmbus_driver_info tps53679_info = {
> static int tps53679_probe(struct i2c_client *client,
> const struct i2c_device_id *id)
> {
> - return pmbus_do_probe(client, id, &tps53679_info);
> + struct pmbus_driver_info *info;
> +
> + info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL);
> + if (!info)
> + return -ENOMEM;
> +
> + memcpy(info, &tps53679_info, sizeof(*info));
> +
Good find, but why not use devm_kmemdup() ?
Thanks,
Guenter
> + return pmbus_do_probe(client, id, info);
> }
>
> static const struct i2c_device_id tps53679_id[] = {
