ipmi: ipmb: Add check devm_kasprintf() returned value

devm_kasprintf() can return a NULL pointer on failure but this
returned value is not checked.

Fixes: 51bd6f2 ("Add support for IPMB driver")
Signed-off-by: Charles Han <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Corey Minyard <[email protected]>

Author: Charles Han

drivers/char/ipmi/ipmb_dev_int.c

@@ -321,6 +321,9 @@ static int ipmb_probe(struct i2c_client *client)
 	ipmb_dev->miscdev.name = devm_kasprintf(&client->dev, GFP_KERNEL,
 						"%s%d", "ipmb-",
 						client->adapter->nr);
+	if (!ipmb_dev->miscdev.name)
+		return -ENOMEM;
+
 	ipmb_dev->miscdev.fops = &ipmb_fops;
 	ipmb_dev->miscdev.parent = &client->dev;
 	ret = misc_register(&ipmb_dev->miscdev);