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linux/drivers/serial
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Tobias Klauser d8d721f4c0 altera_uart: Don't take spinlock in already protected functions 
Don't take the port spinlock in uart functions where the serial core
already takes care of locking/unlocking them.

The code would actually lock up on architectures where spinlocks are
implemented (not the case on nios2 where this driver is primarily used
for now, thus this bug didn't trigger).

Also protect calling altera_uart_rx_chars/altera_uart_tx_chars in the
interrupt handler by the port spinlock.

Thanks to Ian Abbott for pointing these issues out.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:17 -07:00
..
cpm_uart
of: Remove duplicate fields from of_platform_driver
2010-05-22 00:10:40 -06:00
jsm
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
8250_accent.c
…
8250_acorn.c
…
8250_boca.c
…
8250_early.c
…
8250_exar_st16c554.c
…
8250_fourport.c
…
8250_gsc.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
8250_hp300.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
8250_hub6.c
…
8250_mca.c
…
8250_pci.c
serial: add support for Korenix JetCard
2010-03-02 14:43:10 -08:00
8250_pnp.c
serial: 8250_pnp - add Fujitsu Wacom device
2010-04-30 09:20:34 -07:00
8250.c
kgdb,8250,pl011: Return immediately from console poll
2010-05-20 21:04:22 -05:00
8250.h
serial: 8250: add IRQ trigger support
2009-09-19 13:13:19 -07:00
21285.c
ARM: 5874/1: serial21285: fix disable_irq-from-interrupt-handler deadlock
2010-01-11 15:39:21 +00:00
68328serial.c
m68knommu: fix broken use of BUAD_TABLE_SIZE in 68328serial driver
2010-05-25 08:07:02 -07:00
68328serial.h
…
68360serial.c
…
altera_jtaguart.c
serial: Add driver for the Altera JTAG UART
2010-05-21 09:34:30 -07:00
altera_uart.c
altera_uart: Don't take spinlock in already protected functions
2010-06-04 13:37:17 -07:00
amba-pl010.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
amba-pl011.c
kgdb,8250,pl011: Return immediately from console poll
2010-05-20 21:04:22 -05:00
apbuart.c
of: Remove duplicate fields from of_platform_driver
2010-05-22 00:10:40 -06:00
apbuart.h
sparc: Support for GRLIB APBUART serial port
2009-11-04 08:44:54 -08:00
atmel_serial.c
ARM: 6092/1: atmel_serial: support for RS485 communications
2010-05-04 16:59:11 +01:00
bcm63xx_uart.c
serial: bcm63xx_uart: allow more than one uart to be registered.
2010-03-02 14:43:19 -08:00
bfin_5xx.c
serial: bfin_5xx: fix typo in IER check
2010-06-04 13:37:17 -07:00
bfin_sport_uart.c
serial: bfin_sport_uart: Use resource size to fix off-by-one error
2010-05-21 09:34:30 -07:00
bfin_sport_uart.h
serial: bfin_sport_uart: add support for CTS/RTS via GPIOs
2010-05-21 09:34:27 -07:00
clps711x.c
serial: kill off uart_info
2009-09-19 13:13:28 -07:00
crisv10.c
CRIS: fix defconfig build failure
2009-08-31 18:38:16 +02:00
crisv10.h
tty: Use the generic RS485 ioctl on CRIS
2009-04-07 08:44:05 -07:00
dz.c
serial: kill off uart_info
2009-09-19 13:13:28 -07:00
dz.h
…
icom.c
tty: Fix up char drivers request_room usage
2010-03-02 14:43:22 -08:00
icom.h
…
imx.c
serial: imx.c: fix CTS trigger level lower to avoid lost chars
2010-05-13 12:10:56 -07:00
ioc3_serial.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
ioc4_serial.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
ip22zilog.c
serial: move delta_msr_wait into the tty_port
2009-09-19 13:13:31 -07:00
ip22zilog.h
…
Kconfig
serial: Add driver for the Altera UART
2010-05-21 09:34:30 -07:00
kgdboc.c
kgdboc: Add ekgdboc for early use of the kernel debugger
2010-05-20 21:04:30 -05:00
m32r_sio_reg.h
…
m32r_sio.c
serial: kill off uart_info
2009-09-19 13:13:28 -07:00
m32r_sio.h
…
Makefile
serial: Add driver for the Altera UART
2010-05-21 09:34:30 -07:00
max3100.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
mcf.c
m68knommu: allow 4 coldfire serial ports
2010-04-21 14:56:00 +10:00
mpc52xx_uart.c
Merge remote branch 'origin' into secretlab/next-spi
2010-05-25 00:38:26 -06:00
mpsc.c
powerpc/mpsc: Set the port device in the mpsc serial driver
2010-04-07 14:12:36 +10:00
msm_serial.c
msm_serial: fix serial on trout
2010-06-04 13:37:16 -07:00
msm_serial.h
msm_serial: fix serial on trout
2010-06-04 13:37:16 -07:00
mux.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
netx-serial.c
serial: kill off uart_info
2009-09-19 13:13:28 -07:00
nwpserial.c
of: Always use 'struct device.of_node' to get device node pointer.
2010-05-18 16:10:44 -06:00
of_serial.c
of: Remove duplicate fields from of_platform_driver
2010-05-22 00:10:40 -06:00
pmac_zilog.c
powerpc/macio: Fix probing of macio devices by using the right of match table
2010-06-02 17:50:38 +10:00
pmac_zilog.h
pmac-zilog: add platform driver
2010-02-27 18:31:02 +01:00
pnx8xxx_uart.c
serial: move delta_msr_wait into the tty_port
2009-09-19 13:13:31 -07:00
pxa.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
s3c24a0.c
ARM: S3C: Update Simtec copyright statements from , to - [2]
2009-12-01 01:33:51 +00:00
s3c2400.c
ARM: S3C24XX: serial: Fix section mismatch warnings
2009-07-30 23:56:41 +01:00
s3c2410.c
ARM: S3C: Update Simtec copyright statements from , to - [2]
2009-12-01 01:33:51 +00:00
s3c2412.c
ARM: S3C2412: SoC has the fractional baud rate register
2010-02-03 01:55:01 +00:00
s3c2440.c
ARM: S3C: Update Simtec copyright statements from , to - [2]
2009-12-01 01:33:51 +00:00
s3c6400.c
ARM: S3C64XX: serial: Fix section mismatch warning
2009-07-30 23:56:41 +01:00
s5pv210.c
ARM: S5PV210: serial: Fix section mismatch warning
2010-05-28 19:40:05 +09:00
sa1100.c
ARM: Fix SA1100 Neponset serial section mismatch
2009-09-28 18:06:16 +01:00
samsung.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2010-03-12 16:04:50 -08:00
samsung.h
ARM: SAMSUNG: serial: Modify console initialization.
2010-01-19 17:50:47 +09:00
sb1250-duart.c
serial: move delta_msr_wait into the tty_port
2009-09-19 13:13:31 -07:00
sc26xx.c
serial: kill off uart_info
2009-09-19 13:13:28 -07:00
serial_core.c
serial: Fix crash if the minimum rate of the device is > 9600 baud
2010-01-20 15:03:29 -08:00
serial_cs.c
serial_cs: add and sort IDs for serial and modem cards
2010-06-04 13:37:16 -07:00
serial_ks8695.c
ARM: 6030/1: KS8695: enable console
2010-04-23 10:01:56 +01:00
serial_lh7a40x.c
serial: move delta_msr_wait into the tty_port
2009-09-19 13:13:31 -07:00
serial_txx9.c
serial_txx9: use container_of() instead of direct cast
2009-10-01 16:11:15 -07:00
sh-sci.c
sh: fix Oops in the serial SCI driver
2010-05-22 17:06:34 +09:00
sh-sci.h
SH: fix SCIFA SCASCR register bit definitions
2010-03-23 13:33:45 +09:00
sn_console.c
serial: kill off uart_info
2009-09-19 13:13:28 -07:00
suncore.c
serial: suncore: Fix RSC/LOM handling in sunserial_console_termios().
2009-11-24 14:09:56 -08:00
suncore.h
serial: suncore: Fix RSC/LOM handling in sunserial_console_termios().
2009-11-24 14:09:56 -08:00
sunhv.c
of: Remove duplicate fields from of_platform_driver
2010-05-22 00:10:40 -06:00
sunsab.c
of: Remove duplicate fields from of_platform_driver
2010-05-22 00:10:40 -06:00
sunsab.h
…
sunsu.c
of: Remove duplicate fields from of_platform_driver
2010-05-22 00:10:40 -06:00
sunzilog.c
Merge remote branch 'origin' into secretlab/next-devicetree
2010-05-22 00:36:56 -06:00
sunzilog.h
…
timbuart.c
serial: timbuart: make sure last byte is sent when port is closed
2010-05-21 09:34:29 -07:00
timbuart.h
serial: Added Timberdale UART driver
2009-06-11 08:51:06 -07:00
uartlite.c
Merge remote branch 'origin' into secretlab/next-devicetree
2010-05-22 00:36:56 -06:00
ucc_uart.c
of: Remove duplicate fields from of_platform_driver
2010-05-22 00:10:40 -06:00
vr41xx_siu.c
serial: move delta_msr_wait into the tty_port
2009-09-19 13:13:31 -07:00
zs.c
serial: move delta_msr_wait into the tty_port
2009-09-19 13:13:31 -07:00
zs.h
…