Re: [PATCH v2 06/13] iio: gyro: mpu3050: Use vsprintf extension %pe for symbolic error name

From: Jonathan Cameron
Date: Sat Mar 28 2020 - 10:18:34 EST


On Sun, 22 Mar 2020 22:53:08 +0530
Nishant Malpani <nish.malpani25@xxxxxxxxx> wrote:

> Utilize %pe format specifier from vsprintf while printing error logs
> with dev_err(). Discards the use of unnecessary explicit casting and
> prints symbolic error name which might prove to be convenient during
> debugging.
>
> Signed-off-by: Nishant Malpani <nish.malpani25@xxxxxxxxx>
Applied.

Thanks,

Jonathan

> ---
>
> Changes in v2:
> - Rewrite commit subject line outlining the usage of %pe.
> - Add a separator between regmap and its error name.
>
> Based on conversations in [1] & [2].
>
> [1] https://marc.info/?l=linux-iio&m=158427554607223&w=2
> [2] https://marc.info/?l=linux-iio&m=158481647605891&w=2
> ---
> drivers/iio/gyro/mpu3050-i2c.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/gyro/mpu3050-i2c.c b/drivers/iio/gyro/mpu3050-i2c.c
> index afa8018b9238..ef5bcbc4b45b 100644
> --- a/drivers/iio/gyro/mpu3050-i2c.c
> +++ b/drivers/iio/gyro/mpu3050-i2c.c
> @@ -51,8 +51,8 @@ static int mpu3050_i2c_probe(struct i2c_client *client,
>
> regmap = devm_regmap_init_i2c(client, &mpu3050_i2c_regmap_config);
> if (IS_ERR(regmap)) {
> - dev_err(&client->dev, "Failed to register i2c regmap %d\n",
> - (int)PTR_ERR(regmap));
> + dev_err(&client->dev, "Failed to register i2c regmap: %pe\n",
> + regmap);
> return PTR_ERR(regmap);
> }
>