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authorJohan Hedberg <johan.hedberg@intel.com>2015-11-12 16:15:00 +0300
committerMarcel Holtmann <marcel@holtmann.org>2015-11-19 19:50:32 +0300
commit7df0f73ece45c2e499b416cbc90949e0226eb134 (patch)
treee07322a53cfadfec37c14ede429ddcb0d4ced240 /net/bluetooth/hci_core.c
parente2caced40734731e2a17b501840809e30a08141a (diff)
downloadlinux-7df0f73ece45c2e499b416cbc90949e0226eb134.tar.xz
Bluetooth: Simplify request cleanup code
The hci_req_sync_cancel() is just as much related to the request cleanup as hci_request_cancel_all() is. Just move the former into the latter and do the cleanup from a single place in hci_dev_do_close(). The important thing is to avoid deadlocks by holding the req_sync lock: previously hci_request_cancel_all was done right after releasing the lock and with this patch it's right before taking it. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/hci_core.c')
-rw-r--r--net/bluetooth/hci_core.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index fb618d6bcded..63fd31d7b27a 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1523,7 +1523,7 @@ int hci_dev_do_close(struct hci_dev *hdev)
cancel_delayed_work(&hdev->power_off);
- hci_req_sync_cancel(hdev, ENODEV);
+ hci_request_cancel_all(hdev);
hci_req_sync_lock(hdev);
if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
@@ -1625,8 +1625,6 @@ int hci_dev_do_close(struct hci_dev *hdev)
hci_req_sync_unlock(hdev);
- hci_request_cancel_all(hdev);
-
hci_dev_put(hdev);
return 0;
}