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b8c98ae49e
linux/drivers/char
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Arnd Bergmann b8c98ae49e tty: synclink: avoid sleep_on race 
The four variants of the synclink driver use the same code in their
open() callback to wait for a port in process of being closed,
using interruptible_sleep_on, which is racy and going away soon.

Making things worse, these functions hold the BTM while doing so,
which means that if we ever enter this code path, we cannot actually
continue since the other thread that is in process of closing the
port can no longer get the BTM.

This addresses both issues by using wait_event_interruptible_tty()
instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:05:21 -08:00
..
agp parisc: agp/parisc-agp: allow binding of user memory to the AGP GART 2013-07-31 23:42:00 +02:00
hw_random Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2013-11-23 16:18:25 -08:00
ipmi BMC support for PARISC machines 2013-09-05 08:34:32 -07:00
mwave mwave: fix info leak in mwave_ioctl() 2013-07-09 10:33:28 -07:00
pcmcia tty: synclink: avoid sleep_on race 2014-01-07 17:05:21 -08:00
tpm Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2013-11-21 19:46:00 -08:00
xilinx_hwicap char: hwicap: Remove unnecessary dev_set_drvdata() 2013-10-03 16:03:31 -07:00
apm-emulation.c
applicom.c applicom: use correct array offset 2013-03-15 12:23:48 -07:00
applicom.h
bfin-otp.c
bsr.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
ds1302.c
ds1620.c ds1620: single_open() leak 2013-05-05 00:11:29 -04:00
dsp56k.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
dtlk.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
efirtc.c rtc: single_open() leaks 2013-05-05 00:12:29 -04:00
generic_nvram.c
genrtc.c rtc: single_open() leaks 2013-05-05 00:12:29 -04:00
hangcheck-timer.c
hpet.c drivers/char/hpet.c: allow user controlled mmap for user processes 2013-11-13 12:09:11 +09:00
i8k.c drivers/char/i8k.c: add Dell XPLS L421X 2013-12-04 20:22:40 -08:00
Kconfig drivers/char/hpet.c: allow user controlled mmap for user processes 2013-11-13 12:09:11 +09:00
lp.c Char: lp, protect LPGETSTATUS with port_mutex 2013-05-16 18:08:58 -07:00
Makefile IPMI: Change link order 2012-10-16 18:07:12 -07:00
mbcs.c char: remove use of __devinitconst 2012-11-21 12:55:19 -08:00
mbcs.h
mem.c /dev/oldmem: Remove the interface 2013-07-03 16:08:03 -07:00
misc.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-11-13 15:34:18 +09:00
mmtimer.c drivers/char/mmtimer.c: Remove useless kfree 2012-09-26 13:20:40 -07:00
msm_smd_pkt.c
mspec.c char: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT 2013-05-21 10:07:54 -07:00
nsc_gpio.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
nvram.c
nwbutton.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
nwbutton.h
nwflash.c Merge branch 'late/fixes' into fixes 2012-10-07 07:22:32 -07:00
pc8736x_gpio.c pc8736x_gpio: use platform_device_unregister in pc8736x_gpio_cleanup() 2012-10-24 15:52:29 -07:00
ppdev.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
ps3flash.c ps3flash: switch to generic_file_llseek_size() 2013-06-29 12:57:33 +04:00
random.c The /dev/random changes for 3.13 including a number of improvements in 2013-11-16 10:19:15 -08:00
raw.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
rtc.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
scx200_gpio.c
snsc_event.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
snsc.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
snsc.h
sonypi.c ACPI: Remove the old /proc/acpi/event interface 2013-07-15 13:56:36 +02:00
tb0219.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
tile-srom.c PTR_RET() is a weird name, and led to some confusing usage. We ended 2013-09-04 17:31:11 -07:00
tlclk.c tlclk: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
toshiba.c
ttyprintk.c ttyprintk: Fix NULL pointer deref by setting tty_port ops after initializing port 2013-05-21 10:13:23 -07:00
uv_mmtimer.c
virtio_console.c virtio_console: verify if queue is broken after virtqueue_get_buf() 2013-10-29 11:28:18 +10:30