Tomoya MORINAGA ddb289316d pch_uart: Fix dma channel unallocated issue ...

commit af6d17cdc8 upstream.

This driver anticipates pch_uart_verify_port() is not called
during installation.
However, actually pch_uart_verify_port() is called during
installation.
As a result, memory access violation occurs like below.

0. initial value: use_dma=0
1. starup()
    - dma channel is not allocated because use_dma=0
2. pch_uart_verify_port()
    - Set use_dma=1
3. UART processing acts DMA mode because use_dma=1
     - memory access violation occurs!

This patch fixes the issue.

Solution:
Whenever pch_uart_verify_port() is called and then
dma channel is not allocated, the channel should be allocated.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2012-04-27 09:51:07 -07:00

..

cpm_uart

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

jsm

jsm: Fixed EEH recovery error

2012-02-03 09:19:00 -08:00

8250_accent.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

8250_acorn.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

8250_boca.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

8250_early.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

8250_exar_st16c554.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

8250_fourport.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

8250_gsc.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

8250_hp300.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

8250_hub6.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

8250_mca.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

8250_pci.c

8250_pci: Fix kernel panic when pch_uart is disabled

2012-04-22 16:21:44 -07:00

8250_pnp.c

serial: 8250_pnp: add Intermec CV60 touchscreen device

2011-10-03 11:39:48 -07:00

8250.c

8250: Fix race condition in serial8250_backup_timeout().

2011-10-03 11:39:48 -07:00

8250.h

tty/serial: Add explicit PORT_TEGRA type

2011-05-19 16:51:01 -07:00

21285.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

68328serial.c

arch, mm: filter disallowed nodes from arch specific show_mem functions

2011-05-25 08:39:03 -07:00

68328serial.h

68328serial: remove unsed m68k_serial->tqueue_hangup

2011-02-03 14:16:49 -08:00

68360serial.c

Merge 2.6.38-rc6 into tty-next

2011-02-24 11:36:31 -08:00

altera_jtaguart.c

Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6

2011-03-16 17:28:10 -07:00

altera_uart.c

tty: serial: altera_uart: Check for NULL platform_data in probe.

2012-04-22 16:21:23 -07:00

amba-pl010.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

amba-pl011.c

serial: PL011: move interrupt clearing

2012-04-22 16:21:41 -07:00

apbuart.c

sparc32,leon: Fixed APBUART frequency detection

2011-03-30 04:28:54 -07:00

apbuart.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

atmel_serial.c

atmel_serial: fix spinlock lockup in RS485 code

2012-01-12 11:35:07 -08:00

bcm63xx_uart.c

serial: bcm63xx_uart: fix irq storm after rx fifo overrun.

2011-06-16 12:01:58 -07:00

bfin_5xx.c

serial: bfin_5xx: split uart RX lock from uart port lock to avoid deadlock

2011-02-03 14:44:54 -08:00

bfin_sport_uart.c

treewide: cleanup continuations and remove logging message whitespace

2011-04-26 10:24:37 +02:00

bfin_sport_uart.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

clps711x.c

ARM: clps711x: serial driver hungs are a result of call disable_irq within ISR

2012-04-27 09:51:05 -07:00

crisv10.c

cris: fix a build error in drivers/tty/serial/crisv10.c

2011-11-11 09:35:11 -08:00

crisv10.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

dz.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

dz.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

icom.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

icom.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

ifx6x60.c

Serial: ifx6x60c: Remove duplicate includes of linux/tty.h

2011-04-19 16:33:37 -07:00

ifx6x60.h

serial: ifx6x60: minor cleanup

2011-02-17 11:16:15 -08:00

imx.c

Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

2011-05-23 12:23:20 -07:00

ioc3_serial.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

ioc4_serial.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

ip22zilog.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

ip22zilog.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

Kconfig

pch_uart: Support new device LAPIS Semiconductor ML7831 IOH

2011-11-26 09:09:57 -08:00

kgdboc.c

kgdboc,kgdbts: strlen() doesn't count the terminator

2011-03-25 16:37:30 -05:00

lantiq.c

SERIAL: Lantiq: Add driver for MIPS Lantiq SOCs.

2011-05-19 09:55:43 +01:00

m32r_sio_reg.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

m32r_sio.c

m32r: fix spin_lock_irqsave() misuse

2011-05-26 17:12:33 -07:00

m32r_sio.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

Makefile

Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

2011-05-23 12:23:20 -07:00

max3100.c

workqueue, freezer: unify spelling of 'freeze' + 'able' to 'freezable'

2011-02-16 17:48:59 +01:00

max3107-aava.c

tty: Add "spi:" prefix for spi modalias

2011-10-03 11:39:49 -07:00

max3107.c

tty: Add "spi:" prefix for spi modalias

2011-10-03 11:39:49 -07:00

max3107.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

mcf.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

mfd.c

treewide: cleanup continuations and remove logging message whitespace

2011-04-26 10:24:37 +02:00

mpc52xx_uart.c

dt/serial: Eliminate users of of_platform_{,un}register_driver

2011-02-28 13:22:46 -07:00

mpsc.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

mrst_max3110.c

tty: Add "spi:" prefix for spi modalias

2011-10-03 11:39:49 -07:00

mrst_max3110.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

msm_serial_hs.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

msm_serial.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

msm_serial.h

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

msm_smd_tty.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

mux.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

mxs-auart.c

Freescale STMP37XX/STMP378X Application UART driver: remove duplicate linux/device.h include

2011-02-15 18:35:42 +01:00

netx-serial.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

nwpserial.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

of_serial.c

drivercore: revert addition of of_match to struct device

2011-05-18 12:32:23 -06:00

omap-serial.c

omap-serial: Allow IXON and IXOFF to be disabled.

2011-10-03 11:39:48 -07:00

pch_uart.c

pch_uart: Fix dma channel unallocated issue

2012-04-27 09:51:07 -07:00

pmac_zilog.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

pmac_zilog.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

pnx8xxx_uart.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

pxa.c

serial: pxa: work around for errata #20

2011-11-11 09:35:15 -08:00

s3c24a0.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

s3c2400.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

s3c2410.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

s3c2412.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

s3c2440.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

s3c6400.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

s5pv210.c

ARM: SAMSUNG: serial: Fix on handling of one clock source for UART

2011-06-07 09:25:34 -07:00

sa1100.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

samsung.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

samsung.h

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

sb1250-duart.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

sc26xx.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

serial_core.c

serial-core: power up uart port early before we do set_termios when resuming

2011-11-11 09:35:15 -08:00

serial_cs.c

pcmcia: Convert pcmcia_device_id declarations to const

2011-05-06 07:46:22 +02:00

serial_ks8695.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

serial_txx9.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

sh-sci.c

serial: sh-sci: fix a race of DMA submit_tx on transfer

2012-04-02 09:27:22 -07:00

sh-sci.h

sh: sh-sci: sh7377 and sh73a0 build fixes

2011-05-23 12:41:37 +09:00

sn_console.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

suncore.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

suncore.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

sunhv.c

dt/serial: Eliminate users of of_platform_{,un}register_driver

2011-02-28 13:22:46 -07:00

sunsab.c

dt/serial: Eliminate users of of_platform_{,un}register_driver

2011-02-28 13:22:46 -07:00

sunsab.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

sunsu.c

dt/serial: Eliminate users of of_platform_{,un}register_driver

2011-02-28 13:22:46 -07:00

sunzilog.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

sunzilog.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

timbuart.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

timbuart.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

uartlite.c

dt: uartlite: merge platform and of_platform driver bindings

2011-02-28 13:22:43 -07:00

ucc_uart.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2011-03-18 06:31:43 -07:00

vr41xx_siu.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

vt8500_serial.c

tty: remove invalid location line in file header

2011-04-19 16:33:36 -07:00

xilinx_uartps.c

tty/serial: add support for Xilinx PS UART

2011-05-03 10:26:39 -07:00

zs.c

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00

zs.h

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13 12:10:18 -08:00