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

[Sasha Levin]

From: Chuhong Yuan <hslester96@xxxxxxxxx>

[ 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@xxxxxxxxx>
Signed-off-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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