Commit Graph

20020 Commits

Author SHA1 Message Date
Francois Romieu
d7487421b6 chelsio: useless curly braces
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2007-02-05 16:58:43 -05:00
Francois Romieu
356bd1460d chelsio: spaces, tabs and friends
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2007-02-05 16:58:43 -05:00
Francois Romieu
b7d58394e6 chelsio: the return statement is not a function
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2007-02-05 16:58:43 -05:00
Francois Romieu
c697f83e8c chelsio: move return, break and continue statements on their own line
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2007-02-05 16:58:43 -05:00
Zhu Yi
ea8862dc86 [PATCH] ipw2200: add iwconfig rts/frag auto support
This patch add ipw2200 support for iwconfig rts/frag auto.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:43 -05:00
Daniel Drake
2e9b2467de [PATCH] zd1211rw: Add ID for ZyXEL ZyAIR G-220 v2
Tested by Marijn Schouten
zd1211b chip 0586:340f v4810 high 00-13-49 AL2230_RF pa0 g---
FCC ID: I88G220V2

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:42 -05:00
Kai Engert
ff86a543e9 [PATCH] prism54: add ethtool -i interface
Add support for "ethtool -i" to prism54 driver.

ethtool -i queries the specified device for
associated driver information.

This helps tools like Fedora's system-config-network to
provide GUI management of network devices.
I learned how to write this patch by reading the ipw2100
driver code.

Signed-off-by: Kai Engert <kengert@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:42 -05:00
Larry Finger
0191738286 [PATCH] bcm43xx: Interrogate hardware-enable switch and update LEDs
The current bcm43xx driver ignores any wireless-enable switches on mini-PCI
and mini-PCI-E cards. This patch implements a new routine to interrogate the
radio hardware enabled bit in the interface, logs the initial state and any
changes in the switch (if debugging enabled), activates the LED to show the
state, and changes the periodic work handler to provide 1 second response
to switch changes and to account for changes in the periodic work specs.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:42 -05:00
Daniel Drake
33218ba1d1 [PATCH] zd1211rw: Add ID for Linksys WUSBF54G
Tested by Henrik Hjelte
zd1211b chip 13b1:0024 v4802 high 00-14-bf AL2230_RF pa0 ----

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:42 -05:00
Daniel Drake
0ce34bc8f7 [PATCH] zd1211rw: Remove addressing abstraction
Instead of passing our own custom 32-bit addresses around and
translating them, this patch makes all our register address constants
absolute and removes the translation.

There are two ugly parts:
 - fw_reg_addr() is needed to compute addresses of firmware registers, as this
   is dynamic based upon firmware
 - inc_addr() needs a small hack to handle byte vs word addressing

However, both of those are only small, and we don't use fw_regs a whole
lot anyway.

The bonuses here include simplicity and improved driver readability. Also, the
fact that registers are now referenced by 16-bit absolute addresses (as
opposed to 32-bit pseudo addresses) means that over 2kb compiled code size has
been shaved off.

Includes some touchups and sparse fixes from Ulrich Kunitz.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:42 -05:00
Daniel Drake
ee30276774 [PATCH] zd1211rw: Consistency for address space constants
The zd1211rw address space has confused me once too many times. This
patch introduces the following naming notation:

Memory space is split into segments (cr, fw, eeprom) and segments may
contain components (e.g. boot code inside eeprom). These names are
arbitrary and only for the description below:

x_START: Absolute address of segment start
(previously these were named such as CR_BASE_OFFSET, but they weren't
really offsets unless you were considering them as an offset to 0)

x_LEN: Segment length

x_y_LEN: Length of component y of segment x

x_y_OFFSET: Relative address of component y into segment x. The absolute
address for this component is (x_START + x_y_OFFSET)

I also renamed EEPROM registers to EEPROM data. These 'registers' can't
be written to using standard I/O and really represent predefined data
from the vendor.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:42 -05:00
Daniel Drake
a2bdcc6792 [PATCH] zd1211rw: 2 new ZD1211B device ID's
Philips SNU5600, tested by unibrow
zd1211b chip 0471:1236 v4810 high 00-12-bf AL2230_RF pa0 g--

SMC Ez Connect 802.11g (SMCWUSB-G), tested by Victorino Sanz Prat
zd1211b chip 083a:4505 v4810 full 00-13-f7 AL2230_RF pa0 g--N

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:42 -05:00
Daniel Drake
34c4491264 [PATCH] zd1211rw: Generic HMAC initialization
Many of the registers written during ZD1211 HMAC initialization are
duplicated exactly for ZD1211B. Move the identical ones into a generic
part, and write the hardware-specific ones separately.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-02-05 16:58:41 -05:00
Auke Kok
7e72157947 e1000: update version to 7.3.20-k2
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2007-02-05 16:58:41 -05:00
Jesse Brandeburg
7753b171c4 e1000: tune our dynamic itr transmit packet accounting
The driver was still mis-calculating the number of bytes sent during
transmit, now the driver computes what appears to be exactly 100%
correct byte counts (not including CRC) when figuring out how many
bytes and frames were sent during the current transmit packet.
2007-02-05 16:58:41 -05:00
Bruce Allan
f6c57bafcd e1000: clear ip csum info from context descriptor
Since the driver sets the IP checksum insertion bit (IXSM in Status
field) in transmit context descriptors, it should clear the IP checksum
bits of any garbage so as not to confuse the hardware.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2007-02-05 16:58:41 -05:00
Auke Kok
9669f53b98 e1000: display flow control of link status at link up
Print RX/TX flow control setting at link up time to display the
actual link FC properties instead of the advertised values.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2007-02-05 16:58:41 -05:00
Jesse Brandeburg
60cba200f1 e1000: fix NAPI performance on 4-port adapters
This fix attempts to solve a customer (IBM) reported issue with NAPI
enabled e1000 having bad performance when transmitting simultaneously
on four ports.  The issue comes down to an interaction between NAPI,
hardware interrupt balancing, and the driver rescheduling poll on
the same processor.  Try to fix by allowing the driver to re-enable
interrupts sooner instead of polling one more time, when there was
recently all the work completed in cleanup.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2007-02-05 16:58:41 -05:00
Jesse Brandeburg
b5fc8f0c43 e1000: Fix MSI only interrupt handler routine
Unfortunately the read-free MSI interrupt handler needs to flush write
the icr register and thus we can't be read-free. Our MSI irq routine
thus becomes a lot more simpler since we don't need to track link state
anymore.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2007-02-05 16:58:41 -05:00
Auke Kok
bf3cea4d8a e1000: clean up debug output defines
Remove unused MSGOUT macro and add "\n" to function debug output.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2007-02-05 16:58:41 -05:00
Jesse Brandeburg
9990fa3cbd e1000: simplify case handling gigabit at half duplex
Remvoe duplicate code handling erraneous user supplied wrong case
of gigabit speed with half duplex.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2007-02-05 16:58:41 -05:00
Al Viro
886ae1fa13 [PATCH] fix rtl8150
That code doesn't do what its author apparently thought it would do...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-03 20:37:37 -08:00
Linus Torvalds
ce35a81a71 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] sd: udev accessing an uninitialized scsi_disk field results in a crash
  [SCSI] st: A MTIOCTOP/MTWEOF within the early warning will cause the file number to be incorrect
  [SCSI] qla4xxx: bug fixes
  [SCSI] Fix scsi_add_device() for async scanning
2007-02-03 11:26:39 -08:00
Peter Korsgaard
24d8f6aded [PATCH] net/smc911x: match up spin lock/unlock
smc911x_phy_configure's error handling unconditionally unlocks the
spinlock even if it wasn't locked. Patch fixes it.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-03 11:26:06 -08:00
Nagendra Singh Tomar
017f2e37ae [SCSI] sd: udev accessing an uninitialized scsi_disk field results in a crash
sd_probe() calls class_device_add() even before initializing the
sdkp->device variable. class_device_add() eventually results in the user mode
udev program to be called. udev program can read the the allow_restart
attribute of the newly created scsi device. This is resulting in a crash as
the show function for allow_restart (i.e sd_show_allow_restart) returns the
attribute value by reading the sdkp->device->allow_restart variable. As the
sdkp->device is not initialized before calling the user mode hotplug helper,
this results in a crash.
	The patch below solves it by calling class_device_add() only after the
necessary fields in the scsi_disk structure are initialized properly.

Signed-off-by: Nagendra Singh Tomar <nagendra_tomar@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-02-02 19:45:41 -06:00
Linus Torvalds
e47fddf247 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: Initialize nbytes for internal sg commands
  libata: Fix ata_busy_wait() kernel docs
  pata_via: Correct missing comments
  pata_atiixp: propogate cable detection hack from drivers/ide to the new driver
  ahci/pata_jmicron: fix JMicron quirk
2007-02-02 09:14:48 -08:00
Brian King
49c8042996 libata: Initialize nbytes for internal sg commands
Some LLDDs, like ipr, use nbytes and pad_len to determine
the total data transfer length of a command. Make sure
nbytes gets initialized for internally generated commands.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-02 11:52:05 -05:00
Alan
05c39e502e pata_via: Correct missing comments
The 8237S was added to the chipsets but not to the comments. Fix this

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-02 11:52:05 -05:00
Alan
54494f3a83 pata_atiixp: propogate cable detection hack from drivers/ide to the new driver
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-02 11:52:05 -05:00
Tejun Heo
7728098967 ahci/pata_jmicron: fix JMicron quirk
For all JMicrons except for 361 and 368, AHCI mode enable bits in the
Control(1) should be set.  This used to be done in both ahci and
pata_jmicron but while moving programming to PCI quirk, it was removed
from ahci part while still left in pata_jmicron.

The implemented JMicron PCI quirk was incorrect in that it didn't
program AHCI mode enable bits.  If pata_jmicron is loaded first and
programs those bits, the ahci ports work; otherwise, ahci device
detection fails miserably.

This patch makes JMicron PCI quirk clear SATA IDE mode bits and set
AHCI mode bits and remove the respective part from pata_jmicron.
Tested on JMB361, 363 and 368.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-02 11:52:05 -05:00
Linus Torvalds
222335b755 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
  spidernet : fix memory leak in spider_net_stop
  e100: fix napi ifdefs removing needed code
  netxen patches
2007-02-02 08:13:23 -08:00
Jens Osterkamp
a55eb05a57 spidernet : fix memory leak in spider_net_stop
We forget to call spider_net_free_rx_chain_contents which does the
actual dev_kfree_skb. New skbs are allocated from skbuff_head_cache
on each "ifconfig up" letting the cache grow infinitely.

This patch fixes it.

Signed-off-by: Jens Osterkamp <jens@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-02 08:34:10 -05:00
Auke Kok
a53a33da86 e100: fix napi ifdefs removing needed code
e100: fix napi ifdefs removing needed code

From: Auke Kok <auke-jan.h.kok@intel.com>

The e100 driver is NAPI mode only. We need to netif_poll_disable
during suspend and shutdown. The non-NAPI driver code was removed
and is only avaiable in the out-of-tree e100 kernel driver.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-02 08:34:10 -05:00
Jeff Garzik
ae2c27a78f Merge ../linux-2.6 2007-02-02 08:31:55 -05:00
Michael Chan
b659f44e4e [BNX2]: PHY workaround for 5709 A0.
5709 A0 copper devices will not link up with some link partners
without this workaround.

Update driver to 1.5.5.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-02 00:46:35 -08:00
Bartlomiej Zolnierkiewicz
fb594d31aa [PATCH] via82cxxx: fix typo ("cx7000" should be corrected to "cx700")
Noticed by JosephChan@via.com.tw.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:24:03 -08:00
Randy Dunlap
d346cce308 [PATCH] sysrq: showBlockedTasks is sysrq-W
Change SysRq showBlockedTasks from sysrq-X to sysrq-W and show that in the
Help message.

It was previously done via X, but X is already used for Xmon on ppc & powerpc
platforms and this collision needs to be avoided.

All callers of register_sysrq_key() are now marked in the sysrq op/key table.
I didn't mark 'h' as Help because Help is just printed for any unknown key,
such as '?'.

Added some omitted sysrq key entries in the sysrq.txt file.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:22:42 -08:00
Avi Kivity
432bd6cbf9 [PATCH] KVM: fix lockup on 32-bit intel hosts with nx disabled in the bios
Intel hosts, without long mode, and with nx support disabled in the bios
have an efer that is readable but not writable.  This causes a lockup on
switch to guest mode (even though it should exit with reason 34 according
to the documentation).

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:22:41 -08:00
Andrew Morton
6a4c24ec52 [PATCH] pci: remove warning messages
Remove these recently-added warnings.  They don't tell us anythng very
interesting and Kumar says "On an embedded PPC reference system I see this
message 6 times when I've got no cards in the PCI slots."

Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:22:41 -08:00
Jean Delvare
cb7468ef4c [PATCH] via quirk update
Add special handling for the VT82C686.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:22:41 -08:00
Al Viro
9d6ed92196 [PATCH] radio modems sitting on serial port are not for s390
Won't build (request_irq()/free_irq()), even if you manage to find an
s390 box with 8250-compatible UART they are expecting.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:17:06 -08:00
Al Viro
eb79722717 [PATCH] ide section fixes
a) cleanup_module() should be __exit
b) externs should match reality

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:17:06 -08:00
Al Viro
a608ab9cb6 netxen patches
Have fun.

>From 24f4a1a77431575a9cdfaae25adda85842099f70 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 1 Jan 2007 15:22:56 -0500
Subject: [PATCH] netxen trivial annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-31 04:59:08 -05:00
Linus Torvalds
4222721ebb Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid:
  HID: fix pb_fnmode and move it to generic HID
  HID: fix hid-input mapping for Firefly Mini Remote Control
  USB HID: fix hid_blacklist clash for 0x08ca/0x0010
  HID: fix memleaking of collection
2007-01-30 17:02:08 -08:00
David Barksdale
41c57a8718 [PATCH] IPMI: fix timeout list handling
Fix a dangling pointer bug in ipmi_timeout_handler.  A list of timedout
messages is not re-initialized before reuse, causing the head of the list
to point to freed memory.

Signed-off-by: David Barksdale <amatus@ocgnet.org>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 16:01:36 -08:00
ethanhsiao@jmicron.com
99abaf51e2 [PATCH] jmicron: 40/80pin primary detection
jmicron module detects all JMB36x as JMB361 and PATA0 has wrong pin status
of XICBLID.

Cc: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 16:01:35 -08:00
Jean Delvare
c06bb5d49d [PATCH] Fix VIA quirks
Fix VIA quirks that were recently broken by Alan Cox in the upstream
kernel (commit 1597cacbe3).

My understanding is that pci_find_present() doesn't work yet at the time
the quirks are run.  So I used a two-step quirk as is done for some other
quirks already.  First we detect the VIA south bridges and set the right
low and high device limits, then we are ready to actually run the quirks on
the affected devices.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 16:01:35 -08:00
Linus Torvalds
bcdddfb66c Revert "net: ifb error path loop fix"
This reverts commit 0c0b3ae68e.

Quoth David:

  "Jeff, please revert

   It's wrong.  We had a lengthy analysis of this piece of code
   several months ago, and it is correct.

   Consider, if we run the loop and we get an error
   the following happens:

   1) attempt of ifb_init_one(i) fails, therefore we should
      not try to "ifb_free_one()" on "i" since it failed
   2) the loop iteration first increments "i", then it
      check for error

   Therefore we must decrement "i" twice before the first
   free during the cleanup.  One to "undo" the for() loop
   increment, and one to "skip" the ifb_init_one() case which
   failed."

Reported-by: David Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Cc: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 14:11:12 -08:00
Linus Torvalds
8c8c4bafc3 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: fix translation for START STOP UNIT
  libata-scsi: ata_task_ioctl should return ATA registers from sense data
  pata_platform: set_mode fix
  ata_if_xfermask() word 51 fix
  pata_sil680: PIO1 taskfile transfers overclocking fix (repost)
  libata: fix ata_eh_suspend() return value
  ahci: port_no should be used when clearing IRQ in ahci_thaw()

Fix trivial conflict in drivers/ata/pata_platform.c manually
2007-01-30 08:46:17 -08:00
Linus Torvalds
ad2e62a038 Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Remove unneeded errata workaround from p4-clockmod.
  [CPUFREQ] check sysfs_create_link return value
2007-01-30 08:44:08 -08:00