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authorJohan Hedberg <johan.hedberg@intel.com>2015-04-02 13:41:07 +0300
committerMarcel Holtmann <marcel@holtmann.org>2015-04-02 16:09:27 +0200
commit444c6dd54d81edf81c606f571cb52eff4d47fa99 (patch)
treedc665d1e9ac8a254f96553cf70985b564b3cad0d /net
parent64dd374eac154f747623b256c59ecaf5affba724 (diff)
downloadlinux-444c6dd54d81edf81c606f571cb52eff4d47fa99.tar.gz
Bluetooth: Add clarifying comment to command status handling
When dealing with HCI command status events, the reasoning for trying to
mark a request as complete if no specific event is being waited for and
status was success is not self-evident. This patch adds a clarifying
comment above the if-statement.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/hci_event.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7c0f992602f5..87e5bee36408 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3124,6 +3124,12 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
 		atomic_set(&hdev->cmd_cnt, 1);
 
+	/* Indicate request completion if the command failed. Also, if
+	 * we're not waiting for a special event and we get a success
+	 * command status we should try to flag the request as completed
+	 * (since for this kind of commands there will not be a command
+	 * complete event).
+	 */
 	if (ev->status ||
 	    (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))
 		hci_req_cmd_complete(hdev, opcode, ev->status);