WSL2-Linux-Kernel/drivers
Alexey Dobriyan ca509f69de Protect tty drivers list with tty_mutex
Additions and removal from tty_drivers list were just done as well as
iterating on it for /proc/tty/drivers generation.

testing: modprobe/rmmod loop of simple module which does nothing but
tty_register_driver() vs cat /proc/tty/drivers loop

BUG: unable to handle kernel paging request at virtual address 6b6b6b6b
 printing eip:
c01cefa7
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
last sysfs file: devices/pci0000:00/0000:00:1d.7/usb5/5-0:1.0/bInterfaceProtocol
Modules linked in: ohci_hcd af_packet e1000 ehci_hcd uhci_hcd usbcore xfs
CPU:    0
EIP:    0060:[<c01cefa7>]    Not tainted VLI
EFLAGS: 00010297   (2.6.21-rc4-mm1 #4)
EIP is at vsnprintf+0x3a4/0x5fc
eax: 6b6b6b6b   ebx: f6cb50f2   ecx: 6b6b6b6b   edx: fffffffe
esi: c0354700   edi: f6cb6000   ebp: 6b6b6b6b   esp: f31f5e68
ds: 007b   es: 007b   fs: 00d8  gs: 0033  ss: 0068
Process cat (pid: 31864, ti=f31f4000 task=c1998030 task.ti=f31f4000)
Stack: 00000000 c0103f20 c013003a c0103f20 00000000 f6cb50da 0000000a 00000f0e
       f6cb50f2 00000010 00000014 ffffffff ffffffff 00000007 c0354753 f6cb50f2
       f73e39dc f73e39dc 00000001 c0175416 f31f5ed8 f31f5ed4 0ee00000 f32090bc
Call Trace:
 [<c0103f20>] restore_nocheck+0x12/0x15
 [<c013003a>] mark_held_locks+0x6d/0x86
 [<c0103f20>] restore_nocheck+0x12/0x15
 [<c0175416>] seq_printf+0x2e/0x52
 [<c0192895>] show_tty_range+0x35/0x1f3
 [<c0175416>] seq_printf+0x2e/0x52
 [<c0192add>] show_tty_driver+0x8a/0x1d9
 [<c01758f6>] seq_read+0x70/0x2ba
 [<c0175886>] seq_read+0x0/0x2ba
 [<c018d8e6>] proc_reg_read+0x63/0x9f
 [<c015e764>] vfs_read+0x7d/0xb5
 [<c018d883>] proc_reg_read+0x0/0x9f
 [<c015eab1>] sys_read+0x41/0x6a
 [<c0103e4e>] sysenter_past_esp+0x5f/0x99
 =======================
Code: 00 8b 4d 04 e9 44 ff ff ff 8d 4d 04 89 4c 24 50 8b 6d 00 81 fd ff 0f 00 00 b8 a4 c1 35 c0 0f 46 e8 8b 54 24 2c 89 e9 89 c8 eb 06 <80> 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 89 c6 8b 44 24 28 89
EIP: [<c01cefa7>] vsnprintf+0x3a4/0x5fc SS:ESP 0068:f31f5e68

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:05 -07:00
..
acorn
acpi Fix section mismatch of memory hotplug related code. 2007-05-08 11:14:57 -07:00
amba
ata
atm
auxdisplay
base
block floppy: handle device_create_file() failure while init 2007-05-08 11:15:02 -07:00
bluetooth
cdrom
char Protect tty drivers list with tty_mutex 2007-05-08 11:15:05 -07:00
clocksource
connector
cpufreq
crypto
dio
dma
edac
eisa virtual_eisa_root_init() should be __init 2007-05-08 11:15:02 -07:00
fc4
firmware
hid
hwmon Apple SMC driver (hardware monitoring and control) 2007-05-08 11:15:00 -07:00
i2c
ide
ieee1394
infiniband
input
isdn
kvm
leds
macintosh
mca
md Remove do_sync_file_range() 2007-05-08 11:15:04 -07:00
media
message remove unused header file: drivers/message/i2o/i2o_lan.h 2007-05-08 11:15:02 -07:00
mfd
misc
mmc
mtd
net
nubus
oprofile
parisc
parport
pci
pcmcia
pnp init dma masks in pnp_dev 2007-05-08 11:15:00 -07:00
ps3
rapidio
rtc rtc: add RTC class driver for the Maxim MAX6900 2007-05-08 11:15:03 -07:00
s390
sbus
scsi
serial Subject: jsm driver fix for linuxpps support 2007-05-08 11:15:03 -07:00
sh
sn
spi
tc
telephony replace pci_find_device in drivers/telephony/ixj.c 2007-05-08 11:15:02 -07:00
usb
video
w1
zorro
Kconfig
Makefile