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NFC: Fix empty HCI message list check 

list_first_entry() will never return NULL. Instead use
list_for_each_entry_safe() to iterate through the list.

Signed-off-by: Mathias Jeppsson <mathias.jeppsson@sonymobile.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Mathias Jeppsson 2012-07-07 00:53:18 +02:00 committed by John W. Linville
parent b48d966526
commit 1913e57cf9
1 changed files with 2 additions and 3 deletions
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5
net/nfc/hci/core.c
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@ -682,13 +682,12 @@ EXPORT_SYMBOL(nfc_hci_register_device);
void nfc_hci_unregister_device(struct nfc_hci_dev *hdev)
{
struct hci_msg *msg;
struct hci_msg *msg, *n;
skb_queue_purge(&hdev->rx_hcp_frags);
skb_queue_purge(&hdev->msg_rx_queue);
while ((msg = list_first_entry(&hdev->msg_tx_queue, struct hci_msg,
msg_l)) != NULL) {
list_for_each_entry_safe(msg, n, &hdev->msg_tx_queue, msg_l) {
list_del(&msg->msg_l);
skb_queue_purge(&msg->msg_frags);
kfree(msg);