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466b0c0039
linux/drivers/bluetooth
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Ronald Tschalär 0338b1b393 Bluetooth: hci_ldisc: Fix another race when closing the tty. 
The following race condition still existed:

         P1                                P2
  cancel_work_sync()
                                     hci_uart_tx_wakeup()
                                     hci_uart_write_work()
                                     hci_uart_dequeue()
  clear_bit(HCI_UART_PROTO_READY)
  hci_unregister_dev(hdev)
  hci_free_dev(hdev)
  hu->proto->close(hu)
  kfree(hu)
                                     access to hdev and hu

Cancelling the work after clearing the HCI_UART_PROTO_READY bit avoids
this as any hci_uart_tx_wakeup() issued after the flag is cleared will
detect that and not schedule further work.

Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-10-30 15:48:32 +01:00
..
ath3k.c Bluetooth: Style fix - align block comments 2017-07-22 08:39:39 +02:00
bcm203x.c Bluetooth: mark expected switch fall-throughs 2017-10-14 09:25:51 +02:00
bfusb.c networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
bluecard_cs.c Bluetooth: Convert timers to use timer_setup() 2017-10-06 20:37:11 +02:00
bpa10x.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
bt3c_cs.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
btbcm.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
btbcm.h Bluetooth: btbcm: Support the BCM4354 Bluetooth UART device 2015-06-17 18:56:53 +02:00
btintel.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
btintel.h Bluetooth: btintel: Create common Intel Version Read function 2015-12-10 00:51:51 +01:00
btmrvl_debugfs.c
btmrvl_drv.h Bluetooth: btmrvl: drop duplicate header slab.h 2016-12-08 07:44:56 +01:00
btmrvl_main.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-07-05 12:31:59 -07:00
btmrvl_sdio.c Bluetooth: btmrvl: *_err() and *_info() strings should end with newlines 2017-10-06 20:35:47 +02:00
btmrvl_sdio.h btmrvl: add platform specific wakeup interrupt support 2016-05-02 19:26:15 +02:00
btqca.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
btqca.h Bluetooth: btqca: Introduce generic QCA ROME support 2015-08-10 23:52:20 +02:00
btqcomsmd.c Bluetooth: btqcomsmd: retrieve BD address from DT property 2017-10-06 20:35:47 +02:00
btrtl.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
btrtl.h Bluetooth: btrtl: Create separate module for Realtek BT driver 2015-05-14 12:04:12 +02:00
btsdio.c Bluetooth: Style fix - align block comments 2017-07-22 08:39:39 +02:00
btuart_cs.c Bluetooth: Style fix - align block comments 2017-07-22 08:39:39 +02:00
btusb.c Bluetooth: btusb: Fix isochronous interface assignments 2017-10-30 12:28:13 +02:00
btwilink.c Bluetooth: Style fix - align block comments 2017-07-22 08:39:39 +02:00
dtl1_cs.c networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
hci_ag6xx.c Bluetooth: hci_uart: Add diag and address support for Intel/AG6xx 2016-02-29 19:25:22 +02:00
hci_ath.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
hci_bcm.c Bluetooth: hci_bcm: Add support for BCM2E7E 2017-10-14 09:25:12 +02:00
hci_bcsp.c Bluetooth: Convert timers to use timer_setup() 2017-10-06 20:37:11 +02:00
hci_h4.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
hci_h5.c Bluetooth: Convert timers to use timer_setup() 2017-10-06 20:37:11 +02:00
hci_intel.c networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
hci_ldisc.c Bluetooth: hci_ldisc: Fix another race when closing the tty. 2017-10-30 15:48:32 +01:00
hci_ll.c Bluetooth: mark expected switch fall-throughs 2017-10-14 09:25:51 +02:00
hci_mrvl.c networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
hci_nokia.c Bluetooth: hci_nokia: Use new hci_uart_unregister_device() function 2017-07-20 11:18:36 +02:00
hci_qca.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
hci_serdev.c Bluetooth: Use bt_dev_err and bt_dev_info when possible 2017-10-30 12:25:45 +02:00
hci_uart.h Bluetooth: hci_ldisc: Allow sleeping while proto locks are held. 2017-10-29 14:03:28 +01:00
hci_vhci.c networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
Kconfig Bluetooth: BT_HCIUART now depends on SERIAL_DEV_BUS 2017-10-11 20:09:37 +02:00
Makefile Bluetooth: try to improve CONFIG_SERIAL_DEV_BUS dependency 2017-04-22 10:28:40 +02:00