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[RFC,06/12] input: mouse: convert to i2c_new_scanned_device

Message ID 20191106095033.25182-7-wsa+renesas@sang-engineering.com (mailing list archive)
State New, archived
Headers show
Series i2c: replace i2c_new_probed_device with an ERR_PTR variant | expand

Commit Message

Wolfram Sang Nov. 6, 2019, 9:50 a.m. UTC 
Move from the deprecated i2c_new_probed_device() to the new
i2c_new_scanned_device(). Make use of the new ERRPTR if suitable.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---

Build tested only. RFC, please comment and/or ack, but don't apply yet.

 drivers/input/mouse/psmouse-smbus.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

Comments

Dmitry Torokhov Nov. 11, 2019, 6:19 p.m. UTC | #1 
On Wed, Nov 06, 2019 at 10:50:24AM +0100, Wolfram Sang wrote:
> Move from the deprecated i2c_new_probed_device() to the new
> i2c_new_scanned_device(). Make use of the new ERRPTR if suitable.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
> 
> Build tested only. RFC, please comment and/or ack, but don't apply yet.
> 
>  drivers/input/mouse/psmouse-smbus.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/input/mouse/psmouse-smbus.c b/drivers/input/mouse/psmouse-smbus.c
> index 027efdd2b2ad..35bf50a871d2 100644
> --- a/drivers/input/mouse/psmouse-smbus.c
> +++ b/drivers/input/mouse/psmouse-smbus.c
> @@ -198,10 +198,12 @@ static int psmouse_smbus_create_companion(struct device *dev, void *data)
>  	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_HOST_NOTIFY))
>  		return 0;
>  
> -	smbdev->client = i2c_new_probed_device(adapter, &smbdev->board,
> -					       addr_list, NULL);
> -	if (!smbdev->client)
> +	smbdev->client = i2c_new_scanned_device(adapter, &smbdev->board,
> +					        addr_list, NULL);
> +	if (IS_ERR(smbdev->client)) {
> +		smbdev->client = NULL;
>  		return 0;
> +	}
>  
>  	/* We have our(?) device, stop iterating i2c bus. */
>  	return 1;

I'd prefer postponing assignment until after we get valid value. I.e.

	client = i2c_new_probed_device(...);
	if (IS_ERR(client))
		return 0;

	/* We have our(?) device, stop iterating i2c bus. */
	smbdev->client = client;
	return 1;

Thanks.
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Patch

diff --git a/drivers/input/mouse/psmouse-smbus.c b/drivers/input/mouse/psmouse-smbus.c
index 027efdd2b2ad..35bf50a871d2 100644
--- a/drivers/input/mouse/psmouse-smbus.c
+++ b/drivers/input/mouse/psmouse-smbus.c
@@ -198,10 +198,12 @@  static int psmouse_smbus_create_companion(struct device *dev, void *data)
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_HOST_NOTIFY))
 		return 0;
 
-	smbdev->client = i2c_new_probed_device(adapter, &smbdev->board,
-					       addr_list, NULL);
-	if (!smbdev->client)
+	smbdev->client = i2c_new_scanned_device(adapter, &smbdev->board,
+					        addr_list, NULL);
+	if (IS_ERR(smbdev->client)) {
+		smbdev->client = NULL;
 		return 0;
+	}
 
 	/* We have our(?) device, stop iterating i2c bus. */
 	return 1;