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| author | Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> | 2024-12-20 18:32:52 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-17 13:36:14 +0100 |
| commit | b455f050709af2d77611bc3daa3c001ffe1a3896 (patch) | |
| tree | 30321adfcd4ffe3eb69b265d5da3963ade3595ec /drivers/bluetooth | |
| parent | 327bd191bb441854451fb7f406756a9d80c43829 (diff) | |
| download | linux-b455f050709af2d77611bc3daa3c001ffe1a3896.tar.gz linux-b455f050709af2d77611bc3daa3c001ffe1a3896.tar.bz2 linux-b455f050709af2d77611bc3daa3c001ffe1a3896.zip | |
Bluetooth: btnxpuart: Fix driver sending truncated data
[ Upstream commit 8023dd2204254a70887f5ee58d914bf70a060b9d ]
This fixes the apparent controller hang issue seen during stress test
where the host sends a truncated payload, followed by HCI commands. The
controller treats these HCI commands as a part of previously truncated
payload, leading to command timeouts.
Adding a serdev_device_wait_until_sent() call after
serdev_device_write_buf() fixed the issue.
Fixes: 689ca16e5232 ("Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets")
Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btnxpuart.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c index 5ee9a8b8dcfd..e809bb2dbe5e 100644 --- a/drivers/bluetooth/btnxpuart.c +++ b/drivers/bluetooth/btnxpuart.c @@ -1280,6 +1280,7 @@ static void btnxpuart_tx_work(struct work_struct *work) while ((skb = nxp_dequeue(nxpdev))) { len = serdev_device_write_buf(serdev, skb->data, skb->len); + serdev_device_wait_until_sent(serdev, 0); hdev->stat.byte_tx += len; skb_pull(skb, len); |