[PATCH AUTOSEL 5.4 033/134] leds: an30259a: add a check for devm_regmap_init_i2c

Sasha Levin
2019-12-11T15:12:29Z

From: Chuhong Yuan <hslester96@gmail.com>

[ Upstream commit fc7b5028f2627133c7c18734715a08829eab4d1f ]

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>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 250dc9d6f6350..82350a28a5644 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