[PATCH v5 04/15] Bluetooth: Check pending commands in stop_discovery()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This patch adds extra checks in stop_discovery().

The MGMT_OP_STOP_DISCOVERY command should be executed if the device
is running the discovery procedure. So, if there is no discovery
procedure running then EINVAL command status should be returned.

Also, if a MGMT_OP_STOP_DISCOVERY command has been already issued
then EINPROGRESS command status should returned.

Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx>
---
 net/bluetooth/mgmt.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index d8333e0..5e1414b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1664,6 +1664,17 @@ static int stop_discovery(struct sock *sk, u16 index)
 
 	hci_dev_lock_bh(hdev);
 
+	if (!mgmt_pending_find(MGMT_OP_START_DISCOVERY, index)) {
+		err = cmd_status(sk, index, MGMT_OP_STOP_DISCOVERY, EINVAL);
+		goto failed;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, index)) {
+		err = cmd_status(sk, index, MGMT_OP_STOP_DISCOVERY,
+								EINPROGRESS);
+		goto failed;
+	}
+
 	cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, index, NULL, 0);
 	if (!cmd) {
 		err = -ENOMEM;
-- 
1.7.5.2

--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Bluez Devel]     [Linux Wireless Networking]     [Linux Wireless Personal Area Networking]     [Linux ATH6KL]     [Linux USB Devel]     [Linux Media Drivers]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Big List of Linux Books]

  Powered by Linux