commit 98921dbd00c4e2e4bdd56423cb5edf98d57b45f7
author Sachin Kamat <sachin.kamat@linaro.org> Fri Jul 27 12:38:39 2012 +0530
committer Gustavo Padovan <gustavo.padovan@collabora.co.uk> Mon Aug 06 15:03:02 2012 -0300
tree e16d6911125fa785fc3406bdd0e12cf15a9e663f
parent fdefa118ebbcadad4adbaaab067be06a96a48e15

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>

drivers/bluetooth/btusb.c

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e272214..f637c25 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -952,7 +952,7 @@
 			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 @@
 		}
 	}
 
-	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 @@
 	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 @@
 							data->isoc, data);
 		if (err < 0) {
 			hci_free_dev(hdev);
-			kfree(data);
 			return err;
 		}
 	}
@@ -1077,7 +1072,6 @@
 	err = hci_register_dev(hdev);
 	if (err < 0) {
 		hci_free_dev(hdev);
-		kfree(data);
 		return err;
 	}
 
@@ -1110,7 +1104,6 @@
 		usb_driver_release_interface(&btusb_driver, data->isoc);
 
 	hci_free_dev(hdev);
-	kfree(data);
 }
 
 #ifdef CONFIG_PM