Re: [RESEND PATCH v3] tpm: st33zp24: remove pointless checks on probe

From: Jarkko Sakkinen
Date: Thu Dec 08 2022 - 06:00:44 EST


On Tue, Dec 06, 2022 at 05:44:57PM -0800, Dmitry Torokhov wrote:
> Remove tests for SPI device or I2C client to be non-NULL because
> driver core will never call driver's probe method without having
> a valid device structure.
>
> Reviewed-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
> ---
>
> v3: no changes
> v2: reworked commit message
>
> This was a part of a 3-patch series, the first 2 dealt with dropping
> support for platform data and converting the driver to gpiod API, and
> were applied, this one got reviewed-by from Jarkko but for some reason
> was left out.
>
> drivers/char/tpm/st33zp24/i2c.c | 6 ------
> drivers/char/tpm/st33zp24/spi.c | 7 -------
> 2 files changed, 13 deletions(-)
>
> diff --git a/drivers/char/tpm/st33zp24/i2c.c b/drivers/char/tpm/st33zp24/i2c.c
> index 614c7d8ed84f..8156bb2af78c 100644
> --- a/drivers/char/tpm/st33zp24/i2c.c
> +++ b/drivers/char/tpm/st33zp24/i2c.c
> @@ -106,12 +106,6 @@ static int st33zp24_i2c_probe(struct i2c_client *client,
> {
> struct st33zp24_i2c_phy *phy;
>
> - if (!client) {
> - pr_info("%s: i2c client is NULL. Device not accessible.\n",
> - __func__);
> - return -ENODEV;
> - }
> -
> if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
> dev_info(&client->dev, "client not i2c capable\n");
> return -ENODEV;
> diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c
> index ff4adbe104cf..2154059f0235 100644
> --- a/drivers/char/tpm/st33zp24/spi.c
> +++ b/drivers/char/tpm/st33zp24/spi.c
> @@ -223,13 +223,6 @@ static int st33zp24_spi_probe(struct spi_device *dev)
> {
> struct st33zp24_spi_phy *phy;
>
> - /* Check SPI platform functionnalities */
> - if (!dev) {
> - pr_info("%s: dev is NULL. Device is not accessible.\n",
> - __func__);
> - return -ENODEV;
> - }
> -
> phy = devm_kzalloc(&dev->dev, sizeof(struct st33zp24_spi_phy),
> GFP_KERNEL);
> if (!phy)
> --
> 2.39.0.rc0.267.gcb52ba06e7-goog
>
>
> --
> Dmitry

Thanks, applied.

BR, Jarkko