linux/drivers/serial
Jiri Kosina 4bf3631cdb 8250: fix possible deadlock between serial8250_handle_port() and serial8250_interrupt()
Commit 40b36daa introduced possibility that serial8250_backup_timeout() ->
serial8250_handle_port() locks port.lock without disabling irqs, thus
allowing deadlock against interrupt handler (port.lock is acquired in
serial8250_interrupt()).

Spotted by lockdep.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-24 08:23:09 -07:00
..
cpm_uart
jsm
8250.c 8250: fix possible deadlock between serial8250_handle_port() and serial8250_interrupt() 2007-04-24 08:23:09 -07:00
8250.h
8250_accent.c
8250_acorn.c
8250_au1x00.c
8250_boca.c
8250_early.c
8250_exar_st16c554.c
8250_fourport.c
8250_gsc.c
8250_hp300.c
8250_hub6.c
8250_mca.c
8250_pci.c
8250_pnp.c [PATCH] add Fujitsu Siemens Tablet PC devices to 8250_pnp.c 2007-03-23 11:01:22 -07:00
21285.c
68328serial.c
68328serial.h
68360serial.c
amba-pl010.c
amba-pl011.c
atmel_serial.c
atmel_serial.h
clps711x.c
crisv10.c
crisv10.h
dz.c
dz.h
icom.c Char: icom, mark __init as __devinit 2007-04-24 08:23:09 -07:00
icom.h do not truncate irq number for icom adapter 2007-04-24 08:23:08 -07:00
imx.c
ioc3_serial.c
ioc4_serial.c
ip22zilog.c
ip22zilog.h
Kconfig
m32r_sio.c
m32r_sio.h
m32r_sio_reg.h
Makefile
mcfserial.c [PATCH] m68knommu: fix work queues in mcfserial.c driver 2007-03-06 18:08:38 -08:00
mcfserial.h
mpc52xx_uart.c
mpsc.c
mux.c
netx-serial.c
of_serial.c
pmac_zilog.c
pmac_zilog.h
pnx8xxx_uart.c
pxa.c
s3c2410.c
sa1100.c
serial_core.c
serial_cs.c
serial_lh7a40x.c
serial_txx9.c
sh-sci.c serial: Fix sh-sci break interrupt/sysrq handling. 2007-03-14 13:22:37 +09:00
sh-sci.h
sn_console.c [PATCH] 2.6 Altix: console fix for CONFIG_DEBUG_SHIRQ usage 2007-03-08 07:39:15 -08:00
suncore.c
suncore.h
sunhv.c
sunsab.c
sunsab.h
sunsu.c
sunzilog.c
sunzilog.h
uartlite.c
v850e_uart.c
vr41xx_siu.c