NFC: Changed HCI cmd execution completion result to std linux errno

An HCI command can complete either from an HCI response
(with an HCI result) or as a consequence of any other system
error during processing. The completion therefore needs to take
a standard errno code. The HCI response will convert its result
to a standard errno before calling the completion.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/net/nfc/hci/hci.h b/net/nfc/hci/hci.h
index 45f2fe4fd486..d3cde075ba60 100644
--- a/net/nfc/hci/hci.h
+++ b/net/nfc/hci/hci.h
@@ -37,10 +37,11 @@ struct hcp_packet {
 
 /*
  * HCI command execution completion callback.
- * result will be one of the HCI response codes.
- * skb contains the response data and must be disposed.
+ * result will be a standard linux error (may be converted from HCI response)
+ * skb contains the response data and must be disposed, or may be NULL if
+ * an error occured
  */
-typedef void (*hci_cmd_cb_t) (struct nfc_hci_dev *hdev, u8 result,
+typedef void (*hci_cmd_cb_t) (struct nfc_hci_dev *hdev, int result,
                               struct sk_buff *skb, void *cb_data);
 
 struct hcp_exec_waiter {