regulator: tps65185: check devm_kzalloc() result in probe

tps65185_probe() dereferences the allocation result immediately by using data->regmap. If devm_kzalloc() returns NULL under memory pressure, this leads to a NULL pointer dereference.

Add the missing allocation check and return -ENOMEM on failure.

Signed-off-by: Yufan Chen <ericterminal@gmail.com>
Link: https://patch.msgid.link/20260222104035.90790-1-ericterminal@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Eric-Terminal

drivers/regulator/tps65185.c

@@ -332,6 +332,9 @@ static int tps65185_probe(struct i2c_client *client)
 	int i;
 
 	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
 	data->regmap = devm_regmap_init_i2c(client, &regmap_config);
 	if (IS_ERR(data->regmap))
 		return dev_err_probe(&client->dev, PTR_ERR(data->regmap),