linux-kernel - [BlueZ PATCH 1/6] Bluetooth: Update Adv monitor count upon removal

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Message-Id: <20200917132836.BlueZ.1.I27ef2a783d8920c147458639f3fa91b69f6fd9ea@changeid>
Date:   Thu, 17 Sep 2020 13:29:38 +0800
From:   Howard Chung <howardchung@...gle.com>
To:     linux-bluetooth@...r.kernel.org
Cc:     mcchou@...omium.org, marcel@...tmann.org, mmandlik@...omium.org,
        howardchung@...gle.com, luiz.dentz@...il.com, alainm@...omium.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: [BlueZ PATCH 1/6] Bluetooth: Update Adv monitor count upon removal

From: Miao-chen Chou <mcchou@...omium.org>

This fixes the count of Adv monitor upon monitor removal.

The following test was performed.
- Start two btmgmt consoles, issue a btmgmt advmon-remove command on one
console and observe a MGMT_EV_ADV_MONITOR_REMOVED event on the other.

Signed-off-by: Howard Chung <howardchung@...gle.com>
Signed-off-by: Miao-chen Chou <mcchou@...omium.org>
Reviewed-by: Alain Michaud <alainm@...omium.org>
---

 net/bluetooth/hci_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8a2645a833013..f30a1f5950e15 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3061,6 +3061,7 @@ static int free_adv_monitor(int id, void *ptr, void *data)
 
 	idr_remove(&hdev->adv_monitors_idr, monitor->handle);
 	hci_free_adv_monitor(monitor);
+	hdev->adv_monitors_cnt--;
 
 	return 0;
 }
@@ -3077,6 +3078,7 @@ int hci_remove_adv_monitor(struct hci_dev *hdev, u16 handle)
 
 		idr_remove(&hdev->adv_monitors_idr, monitor->handle);
 		hci_free_adv_monitor(monitor);
+		hdev->adv_monitors_cnt--;
 	} else {
 		/* Remove all monitors if handle is 0. */
 		idr_for_each(&hdev->adv_monitors_idr, &free_adv_monitor, hdev);
-- 
2.28.0.618.gf4bc123cb7-goog