Bluetooth: Use devm_kzalloc in btusb.c file

devm_kzalloc() eliminates the need to free memory explicitly
thereby saving some cleanup code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

1 files changed, 3 insertions, 10 deletions

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e27221411036..f637c2550016 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -952,7 +952,7 @@ static int btusb_probe(struct usb_interface *intf,
                         return -ENODEV;
         }
 
-        data = kzalloc(sizeof(*data), GFP_KERNEL);
+        data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
         if (!data)
                 return -ENOMEM;
 
@@ -975,10 +975,8 @@ static int btusb_probe(struct usb_interface *intf,
                 }
         }
 
-        if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
-                kfree(data);
+        if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
                 return -ENODEV;
-        }
 
         data->cmdreq_type = USB_TYPE_CLASS;
 
@@ -998,10 +996,8 @@ static int btusb_probe(struct usb_interface *intf,
         init_usb_anchor(&data->deferred);
 
         hdev = hci_alloc_dev();
-        if (!hdev) {
-                kfree(data);
+        if (!hdev)
                 return -ENOMEM;
-        }
 
         hdev->bus = HCI_USB;
         hci_set_drvdata(hdev, data);
@@ -1069,7 +1065,6 @@ static int btusb_probe(struct usb_interface *intf,
                                                         data->isoc, data);
                 if (err < 0) {
                         hci_free_dev(hdev);
-                        kfree(data);
                         return err;
                 }
         }
@@ -1077,7 +1072,6 @@ static int btusb_probe(struct usb_interface *intf,
         err = hci_register_dev(hdev);
         if (err < 0) {
                 hci_free_dev(hdev);
-                kfree(data);
                 return err;
         }
 
@@ -1110,7 +1104,6 @@ static void btusb_disconnect(struct usb_interface *intf)
                 usb_driver_release_interface(&btusb_driver, data->isoc);
 
         hci_free_dev(hdev);
-        kfree(data);
 }
 
 #ifdef CONFIG_PM