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

From: Dan Murphy
Date: Wed Oct 16 2019 - 08:30:13 EST


Chuhong

On 10/16/19 7:06 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@xxxxxxxxx>
---
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..03ad068f29f7 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);
+ return err;

This should goto exit as the mutex is created before this allocation on ln 302

Dan