linux-kernel - [PATCH 5.19 0530/1157] Bluetooth: hci_sync: Fix resuming scan after suspend resume

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Date:   Mon, 15 Aug 2022 19:58:06 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Zhengping Jiang <jiangzp@...gle.com>,
        Abhishek Pandit-Subedi <abhishekpandit@...omium.org>,
        Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.19 0530/1157] Bluetooth: hci_sync: Fix resuming scan after suspend resume

From: Zhengping Jiang <jiangzp@...gle.com>

[ Upstream commit 68253f3cd715e819bc4bff2b0e6b21234e259d56 ]

After resuming, remove setting scanning_paused to false, because it is
checked and set to false in hci_resume_scan_sync. Also move setting
the value to false before updating passive scan, because the value is
used when resuming passive scan.

Fixes: 3b42055388c30 (Bluetooth: hci_sync: Fix attempting to suspend with
unfiltered passive scan)

Signed-off-by: Zhengping Jiang <jiangzp@...gle.com>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@...omium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/bluetooth/hci_sync.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index c17021642234..1641db8722e0 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -5039,13 +5039,13 @@ static int hci_resume_scan_sync(struct hci_dev *hdev)
 	if (!hdev->scanning_paused)
 		return 0;
 
+	hdev->scanning_paused = false;
+
 	hci_update_scan_sync(hdev);
 
 	/* Reset passive scanning to normal */
 	hci_update_passive_scan_sync(hdev);
 
-	hdev->scanning_paused = false;
-
 	return 0;
 }
 
@@ -5064,7 +5064,6 @@ int hci_resume_sync(struct hci_dev *hdev)
 		return 0;
 
 	hdev->suspended = false;
-	hdev->scanning_paused = false;
 
 	/* Restore event mask */
 	hci_set_event_mask_sync(hdev);
-- 
2.35.1