diff options
| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2024-03-04 19:14:21 +0100 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-03-06 17:27:10 -0500 |
| commit | 664130c0b0309b360bc5bdd40a30604a9387bde8 (patch) | |
| tree | 530a223a17a4bb2751595f3bacee0a1ffc85a024 /drivers/bluetooth | |
| parent | 18d88f0fd8c0fade7ae08c2778d6c6447b11f16a (diff) | |
Bluetooth: btnxpuart: Fix btnxpuart_close
Fix scheduling while atomic BUG in btnxpuart_close(), properly
purge the transmit queue and free the receive skb.
[ 10.973809] BUG: scheduling while atomic: kworker/u9:0/80/0x00000002
...
[ 10.980740] CPU: 3 PID: 80 Comm: kworker/u9:0 Not tainted 6.8.0-rc7-0.0.0-devel-00005-g61fdfceacf09 #1
[ 10.980751] Hardware name: Toradex Verdin AM62 WB on Dahlia Board (DT)
[ 10.980760] Workqueue: hci0 hci_power_off [bluetooth]
[ 10.981169] Call trace:
...
[ 10.981363] uart_update_mctrl+0x58/0x78
[ 10.981373] uart_dtr_rts+0x104/0x114
[ 10.981381] tty_port_shutdown+0xd4/0xdc
[ 10.981396] tty_port_close+0x40/0xbc
[ 10.981407] uart_close+0x34/0x9c
[ 10.981414] ttyport_close+0x50/0x94
[ 10.981430] serdev_device_close+0x40/0x50
[ 10.981442] btnxpuart_close+0x24/0x98 [btnxpuart]
[ 10.981469] hci_dev_close_sync+0x2d8/0x718 [bluetooth]
[ 10.981728] hci_dev_do_close+0x2c/0x70 [bluetooth]
[ 10.981862] hci_power_off+0x20/0x64 [bluetooth]
Fixes: 689ca16e5232 ("Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets")
Cc: stable@vger.kernel.org
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btnxpuart.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c index 55b6e3dcd4ec..0b93c2ff29e4 100644 --- a/drivers/bluetooth/btnxpuart.c +++ b/drivers/bluetooth/btnxpuart.c @@ -1252,6 +1252,9 @@ static int btnxpuart_close(struct hci_dev *hdev) ps_wakeup(nxpdev); serdev_device_close(nxpdev->serdev); + skb_queue_purge(&nxpdev->txq); + kfree_skb(nxpdev->rx_skb); + nxpdev->rx_skb = NULL; clear_bit(BTNXPUART_SERDEV_OPEN, &nxpdev->tx_state); return 0; } |