[PATCH v2] leds: an30259a: add a check for devm_regmap_init_i2c

[PATCH v2] leds: an30259a: add a check for devm_regmap_init_i2c

[Chuhong Yuan]

an30259a_probe misses a check for devm_regmap_init_i2c and may cause
problems.
Add a check and print errors like other leds drivers.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
Changes in v2:
  - Use goto exit instead of return to destroy the mutex when failed.

 drivers/leds/leds-an30259a.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
index 250dc9d6f635..82350a28a564 100644
--- a/drivers/leds/leds-an30259a.c
+++ b/drivers/leds/leds-an30259a.c
@@ -305,6 +305,13 @@ static int an30259a_probe(struct i2c_client *client)
 
 	chip->regmap = devm_regmap_init_i2c(client, &an30259a_regmap_config);
 
+	if (IS_ERR(chip->regmap)) {
+		err = PTR_ERR(chip->regmap);
+		dev_err(&client->dev, "Failed to allocate register map: %d\n",
+			err);
+		goto exit;
+	}
+
 	for (i = 0; i < chip->num_leds; i++) {
 		struct led_init_data init_data = {};
 
-- 
2.20.1

Re: [PATCH v2] leds: an30259a: add a check for devm_regmap_init_i2c

[Dan Murphy]

Chuhong

On 10/16/19 7:54 AM, Chuhong Yuan wrote:
> an30259a_probe misses a check for devm_regmap_init_i2c and may cause
> problems.
> Add a check and print errors like other leds drivers.
>
> Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
> ---
> Changes in v2:
>    - Use goto exit instead of return to destroy the mutex when failed.
>
>   drivers/leds/leds-an30259a.c | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
> index 250dc9d6f635..82350a28a564 100644
> --- a/drivers/leds/leds-an30259a.c
> +++ b/drivers/leds/leds-an30259a.c
> @@ -305,6 +305,13 @@ static int an30259a_probe(struct i2c_client *client)
>   
>   	chip->regmap = devm_regmap_init_i2c(client, &an30259a_regmap_config);
>   
> +	if (IS_ERR(chip->regmap)) {
> +		err = PTR_ERR(chip->regmap);
> +		dev_err(&client->dev, "Failed to allocate register map: %d\n",
> +			err);
> +		goto exit;
> +	}
> +

Reviewed-by: Dan Murphy <dmurphy@ti.com>


>   	for (i = 0; i < chip->num_leds; i++) {
>   		struct led_init_data init_data = {};
>   

Re: [PATCH v2] leds: an30259a: add a check for devm_regmap_init_i2c

[Pavel Machek]

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On Wed 2019-10-16 20:54:03, Chuhong Yuan wrote:
> an30259a_probe misses a check for devm_regmap_init_i2c and may cause
> problems.
> Add a check and print errors like other leds drivers.
> 
> Signed-off-by: Chuhong Yuan <hslester96@gmail.com>

Thanks, applied.
								Pavel
								
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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