diff options
| author | Johan Hedberg <johan.hedberg@nokia.com> | 2010-12-22 00:01:27 +0300 |
|---|---|---|
| committer | Gustavo F. Padovan <padovan@profusion.mobi> | 2010-12-23 03:58:07 +0300 |
| commit | 23bb57633df97ede067ea26f3cdc8a7ba2cd8109 (patch) | |
| tree | 3aa9a25b17da84975691af7159b030f810560e38 /include/net | |
| parent | c71e97bfaadfa727669fcfcf12301744fd169091 (diff) | |
| download | linux-23bb57633df97ede067ea26f3cdc8a7ba2cd8109.tar.xz | |
Bluetooth: Fix __hci_request synchronization for hci_open_dev
The initialization function used by hci_open_dev (hci_init_req) sends
many different HCI commands. The __hci_request function should only
return when all of these commands have completed (or a timeout occurs).
Several of these commands cause hci_req_complete to be called which
causes __hci_request to return prematurely.
This patch fixes the issue by adding a new hdev->req_last_cmd variable
which is set during the initialization procedure. The hci_req_complete
function will no longer mark the request as complete until the command
matching hdev->req_last_cmd completes.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 3786ee83604e..a29feb01854e 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -129,6 +129,7 @@ struct hci_dev { wait_queue_head_t req_wait_q; __u32 req_status; __u32 req_result; + __u16 req_last_cmd; struct inquiry_cache inq_cache; struct hci_conn_hash conn_hash; @@ -693,6 +694,6 @@ struct hci_sec_filter { #define hci_req_lock(d) mutex_lock(&d->req_lock) #define hci_req_unlock(d) mutex_unlock(&d->req_lock) -void hci_req_complete(struct hci_dev *hdev, int result); +void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result); #endif /* __HCI_CORE_H */ |