AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity
31d1d48e19
kernel_optimize_test/drivers/char
History
David Howells 31d1d48e19 Fix init ordering of /dev/console vs callers of modprobe 
Make /dev/console get initialised before any initialisation routine that
invokes modprobe because if modprobe fails, it's going to want to open
/dev/console, presumably to write an error message to.

The problem with that is that if the /dev/console driver is not yet
initialised, the chardev handler will call request_module() to invoke
modprobe, which will fail, because we never compile /dev/console as a
module.

This will lead to a modprobe loop, showing the following in the kernel
log:

	request_module: runaway loop modprobe char-major-5-1
	request_module: runaway loop modprobe char-major-5-1
	request_module: runaway loop modprobe char-major-5-1
	request_module: runaway loop modprobe char-major-5-1
	request_module: runaway loop modprobe char-major-5-1

This can happen, for example, when the built in md5 module can't find
the built in cryptomgr module (because the latter fails to initialise).
The md5 module comes before the call to tty_init(), presumably because
'crypto' comes before 'drivers' alphabetically.

Fix this by calling tty_init() from chrdev_init().

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-06 09:17:02 -07:00
..
agp agp: intel-agp: do not use PCI resources before pci_enable_device() 2010-08-05 12:28:25 +10:00
hw_random Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-05 15:57:35 -07:00
ip2 Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
ipmi ipmi: set schedule_timeout_wait() value back to one 2010-06-29 15:29:31 -07:00
mwave mwave: fix read buffer overflow 2009-09-24 07:21:03 -07:00
pcmcia pcmcia: dev_node removal (remaining drivers) 2010-05-10 10:23:16 +02:00
rio 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
tpm tpm_tis: fix subsequent suspend failures 2010-07-26 10:25:45 +10:00
xilinx_hwicap of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
.gitignore
amiserial.c m68k: amiga - Serial port platform device conversion 2010-05-26 19:51:09 +02:00
apm-emulation.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
applicom.c drivers/char/applicom.c: use memdup_user 2010-05-27 09:12:50 -07:00
applicom.h
bfin_jtag_comm.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
bfin-otp.c const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
briq_panel.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
bsr.c of/address: Clean up function declarations 2010-08-01 01:42:42 -06:00
cd1865.h
consolemap.c
cp437.uni
cs5535_gpio.c drivers: Remove BKL from cs5535_gpio 2009-10-14 17:36:48 +02:00
cyclades.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
defkeymap.c_shipped
defkeymap.map
digi1.h
digiFep1.h
digiPCI.h
ds1302.c
ds1620.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
dsp56k.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
dtlk.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
efirtc.c efirtc: explicitly set llseek to no_llseek 2009-12-16 07:19:59 -08:00
epca.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
epca.h
epcaconfig.h
generic_nvram.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
generic_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
genrtc.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
hangcheck-timer.c hangcheck-timer: fix x86_32 bugs 2010-05-25 08:07:02 -07:00
hpet.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
hvc_beat.c Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-02-25 15:38:37 -08:00
hvc_console.c hvc_console: use "*_console" nomenclature to avoid modpost warning. 2010-07-09 11:28:24 +10:00
hvc_console.h hvc_console: make the ops pointer const. 2010-02-24 14:22:32 +10:30
hvc_irq.c
hvc_iseries.c Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
hvc_iucv.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
hvc_rtas.c hvc_console: make the ops pointer const. 2010-02-24 14:22:32 +10:30
hvc_udbg.c hvc_console: make the ops pointer const. 2010-02-24 14:22:32 +10:30
hvc_vio.c hvc_console: make the ops pointer const. 2010-02-24 14:22:32 +10:30
hvc_xen.c hvc_console: make the ops pointer const. 2010-02-24 14:22:32 +10:30
hvcs.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
hvsi.c hvc_console: use "*_console" nomenclature to avoid modpost warning. 2010-07-09 11:28:24 +10:00
i8k.c procfs: Push down the bkl from ioctl 2010-05-17 03:06:12 +02:00
isicom.c serial: isicomm: handle running out of slots 2010-05-21 09:34:30 -07:00
istallion.c tty: Fix regressions in the char driver conversion 2010-04-30 09:20:33 -07:00
Kconfig ramoops: add HAS_IOMEM dependency 2010-06-04 15:21:44 -07:00
keyboard.c Input: keyboard - also match braille-only keyboards 2010-07-31 02:29:31 -07:00
lp.c lp: move compat_ioctl handling into lp.c 2009-12-10 22:55:36 +01:00
Makefile char drivers: RAM oops/panic logger 2010-05-27 09:12:50 -07:00
mbcs.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
mbcs.h
mem.c Fix init ordering of /dev/console vs callers of modprobe 2010-08-06 09:17:02 -07:00
misc.c drivers: misc: pass miscdevice pointer via file private data 2010-05-25 08:07:03 -07:00
mmtimer.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
moxa.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
moxa.h
mspec.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
mxser.c tty: Fix regressions in the char driver conversion 2010-04-30 09:20:33 -07:00
mxser.h
n_gsm.c TTY/n_gsm: potential double lock 2010-06-04 13:37:17 -07:00
n_hdlc.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
n_r3964.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
n_tty.c ldisc n_tty: add new method n_tty_inherit_ops() 2010-03-12 15:52:43 -08:00
nozomi.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
nsc_gpio.c
nvram.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
nwbutton.c
nwbutton.h
nwflash.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
pc8736x_gpio.c drivers: Remove BKL from pc8736x_gpio 2009-10-14 17:36:52 +02:00
ppdev.c drivers/char/ppdev.c: use kasprintf 2010-05-27 09:12:50 -07:00
ps3flash.c drop unused dentry argument to ->fsync 2010-05-27 22:05:02 -04:00
pty.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
ramoops.c char drivers: RAM oops/panic logger 2010-05-27 09:12:50 -07:00
random.c random: Reorder struct entropy_store to remove padding on 64bits 2010-07-31 19:58:00 +08:00
raw.c drivers: Push down BKL into various drivers 2010-05-17 05:27:41 +02:00
riscom8_reg.h
riscom8.c tty: Fix regressions in the char driver conversion 2010-04-30 09:20:33 -07:00
riscom8.h
rocket_int.h
rocket.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
rocket.h
rtc.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
scc.h
scx200_gpio.c drivers: Remove BKL from scx200_gpio 2009-10-14 17:36:53 +02:00
selection.c
ser_a2232.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
ser_a2232.h
ser_a2232fw.ax
ser_a2232fw.h
serial167.c serial: Tidy REMOTE_DEBUG 2010-05-21 09:34:31 -07:00
snsc_event.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
snsc.c
snsc.h
sonypi.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
specialix_io8.h
specialix.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
stallion.c tty: Fix regressions in the char driver conversion 2010-04-30 09:20:33 -07:00
sx.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
sx.h
sxboards.h
sxwindow.h
synclink_gt.c synclink: use ARRAY_SIZE 2010-07-20 17:04:11 +02:00
synclink.c Char: synclink, remove unnecessary checks 2010-03-02 14:43:16 -08:00
synclinkmp.c hdlc: convert to netdev_tx_t 2009-09-01 01:13:31 -07:00
sysrq.c sysrq,kdb: Use __handle_sysrq() for kdb's sysrq function 2010-07-21 19:27:07 -05:00
tb0219.c mips: Remove BKL from tb0219 2009-10-14 17:36:53 +02:00
tlclk.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
toshiba.c tosh: Use non bkl ioctl 2010-01-04 12:31:21 -08:00
tty_audit.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
tty_buffer.c tty: fix obsolete comment on tty_insert_flip_string_fixed_flag 2010-05-21 09:34:30 -07:00
tty_io.c Fix init ordering of /dev/console vs callers of modprobe 2010-08-06 09:17:02 -07:00
tty_ioctl.c tree-wide: fix a very frequent spelling mistake 2009-11-09 09:40:54 +01:00
tty_ldisc.c tty: Fix the ldisc hangup race 2010-03-02 14:43:22 -08:00
tty_port.c tty_port,usb-console: Fix usb serial console open/close regression 2010-03-19 07:17:57 -07:00
uv_mmtimer.c x86, UV: Fix RTC latency bug by reading replicated cachelines 2010-01-27 11:33:53 +01:00
vc_screen.c vc: create vcs(a) devices for consoles 2009-07-20 16:38:43 -07:00
viotape.c of: Always use 'struct device.of_node' to get device node pointer. 2010-05-18 16:10:44 -06:00
virtio_console.c virtio: console: Fix crash when port is unplugged and blocked for write 2010-06-03 22:39:19 +09:30
vme_scc.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
vt_ioctl.c vt_ioctl: return -EFAULT on copy_from_user errors 2010-06-04 13:37:18 -07:00
vt.c vt,console,kdb: automatically set kdb LINES variable 2010-08-05 09:22:30 -05:00