2019-10-16 15:57:32

by Chuhong Yuan

[permalink] [raw]

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

---

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 <[email protected]>
---
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

2019-10-16 16:26:00

by Dan Murphy

[permalink] [raw]

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

---

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 <[email protected]>
> ---
> 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 <[email protected]>


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

2019-11-04 09:10:36

by Pavel Machek

[permalink] [raw]

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

---

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 <[email protected]>

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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