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| author | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-07-01 12:07:46 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-08-03 08:59:48 +0200 |
| commit | 70d665b83e2ea3741ac25f347fcf569baa23ea6a (patch) | |
| tree | 287cf8353e9c4234495413b9ef84a630d1bd508a /net | |
| parent | f7fb60b5380a8232a9003a3c9f6c9f732829c699 (diff) | |
| download | linux-stable-70d665b83e2ea3741ac25f347fcf569baa23ea6a.tar.gz linux-stable-70d665b83e2ea3741ac25f347fcf569baa23ea6a.tar.bz2 linux-stable-70d665b83e2ea3741ac25f347fcf569baa23ea6a.zip | |
Bluetooth: Fix usage of __hci_cmd_sync_status
[ Upstream commit 87be7b189b2c50d4b51512f59e4e97db4eedee8a ]
__hci_cmd_sync_status shall only be used if hci_req_sync_lock is _not_
required which is not the case of hci_dev_cmd so it needs to use
hci_cmd_sync_status which uses hci_req_sync_lock internally.
Fixes: f1a8f402f13f ("Bluetooth: L2CAP: Fix deadlock")
Reported-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/hci_core.c | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index c644b30977bd..7ae118a6d947 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -718,8 +718,8 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) switch (cmd) { case HCISETAUTH: - err = __hci_cmd_sync_status(hdev, HCI_OP_WRITE_AUTH_ENABLE, - 1, &dr.dev_opt, HCI_CMD_TIMEOUT); + err = hci_cmd_sync_status(hdev, HCI_OP_WRITE_AUTH_ENABLE, + 1, &dr.dev_opt, HCI_CMD_TIMEOUT); break; case HCISETENCRYPT: @@ -730,23 +730,21 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) if (!test_bit(HCI_AUTH, &hdev->flags)) { /* Auth must be enabled first */ - err = __hci_cmd_sync_status(hdev, - HCI_OP_WRITE_AUTH_ENABLE, - 1, &dr.dev_opt, - HCI_CMD_TIMEOUT); + err = hci_cmd_sync_status(hdev, + HCI_OP_WRITE_AUTH_ENABLE, + 1, &dr.dev_opt, + HCI_CMD_TIMEOUT); if (err) break; } - err = __hci_cmd_sync_status(hdev, HCI_OP_WRITE_ENCRYPT_MODE, - 1, &dr.dev_opt, - HCI_CMD_TIMEOUT); + err = hci_cmd_sync_status(hdev, HCI_OP_WRITE_ENCRYPT_MODE, + 1, &dr.dev_opt, HCI_CMD_TIMEOUT); break; case HCISETSCAN: - err = __hci_cmd_sync_status(hdev, HCI_OP_WRITE_SCAN_ENABLE, - 1, &dr.dev_opt, - HCI_CMD_TIMEOUT); + err = hci_cmd_sync_status(hdev, HCI_OP_WRITE_SCAN_ENABLE, + 1, &dr.dev_opt, HCI_CMD_TIMEOUT); /* Ensure that the connectable and discoverable states * get correctly modified as this was a non-mgmt change. @@ -758,9 +756,8 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) case HCISETLINKPOL: policy = cpu_to_le16(dr.dev_opt); - err = __hci_cmd_sync_status(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, - 2, &policy, - HCI_CMD_TIMEOUT); + err = hci_cmd_sync_status(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, + 2, &policy, HCI_CMD_TIMEOUT); break; case HCISETLINKMODE: |