Loic Poulain f8fd1b0350 serial: 8250: Fix thread unsafe __dma_tx_complete function ...

__dma_tx_complete is not protected against concurrent
call of serial8250_tx_dma. it can lead to circular tail
index corruption or parallel call of serial_tx_dma on the
same data portion.

This patch fixes this issue by holding the port lock.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-04-24 15:18:02 -07:00

..

8250_accent.c

…

8250_acorn.c

tty: remove use of __devexit

2012-11-21 15:27:46 -08:00

8250_boca.c

…

8250_core.c

8250_core: Fix unwanted TX chars write

2014-04-24 15:18:02 -07:00

8250_dma.c

serial: 8250: Fix thread unsafe __dma_tx_complete function

2014-04-24 15:18:02 -07:00

8250_dw.c

serial: 8250_dw: fix compilation warning when !CONFIG_PM_SLEEP

2014-02-13 09:57:33 -08:00

8250_early.c

serial: 8250_early: fix comparison of different types

2013-08-12 11:35:31 -07:00

8250_em.c

tty: delete non-required instances of include <linux/init.h>

2014-01-07 17:05:21 -08:00

8250_exar_st16c554.c

…

8250_fourport.c

…

8250_fsl.c

…

8250_gsc.c

parisc: Fix interrupt routing for C8000 serial ports

2013-07-31 23:42:32 +02:00

8250_hp300.c

tty: remove use of __devexit

2012-11-21 15:27:46 -08:00

8250_hub6.c

…

8250_pci.c

serial: 8250_pci: change BayTrail default uartclk

2014-03-08 22:24:53 -08:00

8250_pnp.c

tty: delete non-required instances of include <linux/init.h>

2014-01-07 17:05:21 -08:00

8250.h

serial: 8250: remove a few lines of dead code

2013-03-25 16:36:48 -07:00

Kconfig

tty/serial/8250: fix typo in help text

2013-11-25 08:52:53 -08:00

Makefile

TTY: 8250, revert module name change

2013-03-25 16:26:23 -07:00

serial_cs.c

tty: delete non-required instances of include <linux/init.h>

2014-01-07 17:05:21 -08:00