Commit graph

88971 commits

Author SHA1 Message Date
Steven Toth
31c8cc9742 V4L/DVB (7464): Convert driver to use a single SRAM memory map
This reduces the memory footprint and removes the need to
manually configure each map, which lead to a bug where
the Fusion EXP 5 board broke for a while.
This also fixes digital support again for
the DViCO FusionHDTV5Express.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:45 -03:00
Cyrill Gorcunov
1a002ebf60 V4L/DVB (7461): bttv: fix missed index check
We should check for proper index first

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:45 -03:00
Robert Fitzsimons
c137918978 V4L/DVB (7400): bttv: Add a radio compat_ioctl file operation
Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:45 -03:00
Robert Fitzsimons
1b0690134e V4L/DVB (7278): bttv: Re-enable radio tuner support for VIDIOCGFREQ/VIDIOCSFREQ ioctls
Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:44 -03:00
Robert Fitzsimons
5cd3955cb8 V4L/DVB (7277): bttv: Re-enabling radio support requires the use of struct bttv_fh
A number of the radio tuner ioctl functions are shared with the TV
tuner, these functions require a struct bttv_fh data structure to be
allocated and initialized.

Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:44 -03:00
John W. Linville
06501d29ad wireless: fix various printk warnings on ia64 (and others)
drivers/net/wireless/ath5k/base.c: In function `ath5k_check_ibss_tsf':
drivers/net/wireless/ath5k/base.c:1740: warning: long long unsigned int format, u64 arg (arg 5)
drivers/net/wireless/ath5k/base.c:1740: warning: long long unsigned int format, u64 arg (arg 6)
drivers/net/wireless/ath5k/base.c:1740: warning: long long int format, u64 arg (arg 7)
drivers/net/wireless/ath5k/base.c:1740: warning: long long unsigned int format, u64 arg (arg 8)
drivers/net/wireless/ath5k/base.c:1757: warning: long long unsigned int format, u64 arg (arg 5)
drivers/net/wireless/ath5k/base.c:1757: warning: long long unsigned int format, u64 arg (arg 6)
drivers/net/wireless/iwlwifi/iwl4965-base.c: In function `iwl4965_tx_status_reply_tx':
drivers/net/wireless/iwlwifi/iwl4965-base.c:3105: warning: long long unsigned int format, u64 arg (arg 6)
drivers/net/wireless/iwlwifi/iwl-4965.c: In function `iwl4965_rx_reply_rx':
drivers/net/wireless/iwlwifi/iwl-4965.c:3978: warning: long long unsigned int format, u64 arg (arg 7)

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:38:47 -04:00
Luis Carlos Cobo
6c4711b469 mac80211: use a struct for bss->mesh_config
This allows cleaner code when accesing bss->mesh_config components.

Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:12 -04:00
Luis Carlos Cobo
05e5e88373 mac80211: check for mesh_config length on incoming management frames
Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:12 -04:00
Luis Carlos Cobo
966a542822 mac80211: use recent multicast table for all mesh multicast frames
...not only broadcast.

Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:11 -04:00
Luis Carlos Cobo
cb585bccfe mac80211: fix spinlock recursion on sta expiration
Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:11 -04:00
Luis Carlos Cobo
73bb3e4a7a mac80211: fix deadlocks in debugfs_netdev.c
The bug shows up with CONFIG_PREEMPT enabled. Pointed out by Andrew Morton.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:11 -04:00
Johannes Berg
7e879b551f mac80211: fix sparse complaint in ieee80211_sta_def_wmm_params
A variable 'i' is being shadowed by another one, but the second
one can just be removed.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Vladimir Koutny <vlado@work.ksp.sk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:10 -04:00
Johannes Berg
dc6676b7f2 mac80211: sta_info_flush() fixes
When the IBSS code tries to flush the STA list, it does so in
an atomic context. Flushing isn't safe there, however, and
requires the RTNL, so we need to defer it to a workqueue.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:10 -04:00
Johannes Berg
4f6fab472c mac80211: clean up sta_info_destroy() users wrt. RCU/locking
Calling sta_info_destroy() doesn't require RCU-synchronisation
before-hand because it does that internally. However, it does
require rtnl-locking so insert that where necessary.

Also clean up the code doing it internally to be a bit clearer and
not synchronize twice if keys are configured.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:10 -04:00
Johannes Berg
93e5deb1ae mac80211: automatically free sta struct when insertion fails
When STA structure insertion fails, it has been allocated but isn't
really alive yet, it isn't reachable by any other code and also can't
yet have much configured. This patch changes the code so that when
the insertion fails, the resulting STA pointer is no longer valid
because it is freed.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:10 -04:00
Johannes Berg
97bff8ecf4 mac80211: fix sta_info_destroy(NULL)
sta_info_destroy(NULL) should be valid, but currently isn't because
the argument is dereferenced before the NULL check. There are no
users that currently pass in NULL, i.e. all check before calling the
function, but I want to change that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:09 -04:00
Johannes Berg
9dd6aed05b mac80211 ibss: flush only stations belonging to current interface
When joining a new IBSS, all old stations are flushed, but currently
all stations belonging to all virtual interfaces are flushed, which
is wrong. This patch fixes it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:09 -04:00
Ivo van Doorn
a2e1d52a32 rt2x00: Remove MAC80211_LEDS dependency
Implement triggers inside rt2x00 itself based
on input from mac80211. This replaces the method
of using the mac80211 trigger events which do
not work for USB drivers due to the scheduling
requirement.

After this patch RT2500USB_LEDS and RT73USB_LEDS
no longer need to be tagged as broken since they
now support LED handling again without having to
check for in_atomic().

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:09 -04:00
Ivo van Doorn
e0b005fa14 rt2x00: TO_DS filter depends on intf_ap_count
The TO_DS filter does not only depend on the FIF_PROMISC_IN_BSS flag
provided by mac80211, but also on the intf_ap_count count.
This makes sense, since when Master mode is active, we should all frames
that are send to the active AP (the device itself).

This means that when an interface is added we should force the
packet filter to be updated during the next mac80211 call of
configure_filter() to make sure the intf_ap_count field is checked.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:14:08 -04:00
Ivo van Doorn
bc5213f468 rt2x00: Invert scheduled packet_filter check
Invert the check for scheduling the packet_filter configuration.
When DRIVER_REQUIRE_SCHEDULED is not set we should immediately
configure the the filter.

This fixes the 'infinite calls to rt2x00mc_configure_filter'
bug reported by Bas Hulsken.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:20 -04:00
Tomas Winkler
e5472978ef iwlwifi: Fix synchronous host command
This patch replaces static variable from send_cmd_sync
with flag in priv->status. It was used for reentrance protection
but clearly made it impossible to stuck more cards into the same machine

In addition it force check of return values of synchronous commands
commands that doesn't requires return value async commands have to be used

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Yi Zhu <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:19 -04:00
Tomas Winkler
a571ea4eb3 iwlwifi: LED initialize before registering
This patch initialize all fields in led before registering it
This fixes oops on initialization

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:19 -04:00
Ron Rindjunsky
c4f552321f iwlwifi: unregister to upper stack before releasing resources
This patch fixes an early release of driver's resources before upper stack
was notified that low-level driver shuts down.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:19 -04:00
Reinette Chatre
897e1cf29e iwlwifi: move rate registration to module load
Having rate registration during module load enables the use of
error checking as well as reliable registration/unregistration
pairing. Previously this was not possible as rate registration
was done during _probe where _probe could be run for more than
one device on the system.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:19 -04:00
Mohamed Abbas
0359facc7b iwlwifi: fix race condition during driver unload
This patch fixed the OOPS when load the driver while rf-kill is on then
unload the driver right after load. a race condition caused the interupt
handler to schedule the tasklet which will run right after the driver pci_remove
causing invalid poiter OOPS.

Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:18 -04:00
Mohamed Abbas
ad97edd2f5 iwlwifi: hook iwlwifi with Linux rfkill
This patch hook IWL with Linux rfkill.

Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:18 -04:00
Mohamed Abbas
c8381fdcab iwlwifi: add notification infrastructure to iwlcore
This patch add notification function to be called by low level
iwl driver to notify iwlcore with current state. This function
will call iwlcore subsystem with the new state. This will
help make the code more consistent and easy to extend. For example
the rf-kill need to know when the driver in init, start, stop or
remove state. Instead doing the same call in 3945 and 4965, we
just do it from this function.

Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:18 -04:00
Andrew Morton
0675abdbfb net/mac80211/debugfs_netdev.c: use of bool triggers a gcc bug
This bool causes my gcc-4.1.0 alpha cross compiler to go into an infinite
loop.  Switching it to u8 works around that.

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:17 -04:00
John W. Linville
3480a58a90 rt2x00: fixup some non-functional merge errors
These small changes restore the rt2x00 sources to the way Ivo intended.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:17 -04:00
Holger Schurig
04850a47aa libertas: don't depend on IEEE80211
Runtime-wise we only need escape_ssid from the deprecated IEEE80211
subsystem. However, it's easy to provide our own copy.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:17 -04:00
Holger Schurig
f539f2efe9 libertas: convert sleep/wake config direct commands
Confirm sleep event: they come very regularly, eventually several times per
second. Therefore we want to send the config command as fast as possible.
The old code pre-set the command in priv->lbs_ps_confirm_sleep. However, the
byte sequence to be sent to the hardware is the same for all interfaces. So
this patch make this an extern structure, initialized at module load time.

Config wake event: normal conversion to a direct command. However, I don't know
how to trigger a "HOST AWAKE" event from the firmware, so this part is
untested.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:17 -04:00
Holger Schurig
7460f5a690 libertas: convert CMD_802_11_EEPROM_ACCESS to a direct command
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:16 -04:00
Holger Schurig
2af9f039a1 libertas: convert CMD_802_11_MAC_ADDRESS to a direct command
* directly call lbs_cmd_with_response()
* only overwrite priv->current_addr once the firmware call succeeded

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:16 -04:00
Al Viro
717ddc0ebd endianness annotations: drivers/net/wireless/rtl8180_dev.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:16 -04:00
Linus Torvalds
0e81a8ae37 Linux 2.6.25-rc8 2008-04-01 12:44:26 -07:00
Vladimir Koutny
d43c7b37ad mac80211: correct use_short_preamble handling
ERP IE bit for preamble mode is 0 for short and 1 for long, not the other
way around. This fixes the value reported to the driver via
bss_conf->use_short_preamble field.

Signed-off-by: Vladimir Koutny <vlado@ksp.sk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 15:44:08 -04:00
Michael Buesch
e645890115 b43: Fix PCMCIA IRQ routing
This fixes the IRQ routing on PCMCIA devices.
With this patch the card will finally be able to receive IRQs.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 15:44:08 -04:00
Michael Buesch
539e6f8cff b43: Add DMA mapping failure messages
This adds messages for some DMA mapping failures.
These are useful for debugging DMA address problems, as they appear
on x86_64 machines with IOMMU enabled.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 15:44:08 -04:00
Jan Niehusmann
64f851e410 mac80211: trigger ieee80211_sta_work after opening interface
ieee80211_sta_work is disabled while network interface
is down. Therefore, if you configure wireless parameters
before bringing the interface up, these configurations are
not yet effective and association fails.

A workaround from userspace is calling a command like
'iwconfig wlan0 ap any' after the interface is brought up.

To fix this behaviour, trigger execution of ieee80211_sta_work from
ieee80211_open when in STA or IBSS mode.

Signed-off-by: Jan Niehusmann <jan@gondor.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 15:44:07 -04:00
Christoph Lameter
00460dd5f4 Fix undefined count_partial if !CONFIG_SLABINFO
Small typo in the patch recently merged to avoid the unused symbol
message for count_partial(). Discussion thread with confirmation of fix at
http://marc.info/?t=120696854400001&r=1&w=2

Typo in the check if we need the count_partial function that was
introduced by 53625b4204

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01 12:44:06 -07:00
Linus Torvalds
670e23ceb1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: fw-ohci: plug dma memory leak in AR handler
2008-04-01 11:46:14 -07:00
Linus Torvalds
10027471a3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25:
  sh: Fix up uImage compression type
  remove include/asm-sh/floppy.h
  sh: Fix TIF_USEDFPU clearing under FPU emulation.
  sh: Fix occasional FPU register corruption under preempt.
2008-04-01 11:45:48 -07:00
Linus Torvalds
61434392f7 Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/upstream-linus
* 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/upstream-linus:
  [MIPS] XSS1500: Fix compilation
  [MIPS] Bigsur: make defconfig more useful.
  [MIPS] Alchemy: work around clock misdetection on early Au1000
  [MIPS] Add missing 4KEC TLB refill handler
  [MIPS] BCM1480: Fix PCI/HT IO access
  [MIPS] Fix the installation condition of MIPS clocksource
  [MIPS] Check for GCC r10k-cache-barrier support
  [MIPS] I8253: Export i2853_lock to modules.
  [MIPS] VPE loader: Check result of memory allocation.
2008-04-01 11:31:31 -07:00
Oliver Schuster
0e45adb8f5 [WATCHDOG] Fix it8712f_wdt.c wrong byte order accessing WDT_TIMEOUT
This patch corrects an error in the driver it8712f_wdt.  You cannot set
the 16-bit WDT_TIMEOUT access as a 16-bit outw, because the byte
ordering will be wrong.  So just do the high 8 bits as a separate
access.

Signed-off-by: Oliver Schuster <olivers137@aol.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01 11:31:05 -07:00
Linus Torvalds
d5f1a21ca0 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 4875/1: Add MODULE_ALIAS to ixp4xx-beeper module
  [ARM] 4873/1: Fix ITE 8152 interrupt demux
  [ARM] 4878/1: Add oabi shim for fstatat64
2008-04-01 11:26:26 -07:00
Linus Torvalds
1f4cfbaa2b Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6:
  hwmon: (w83781d) Fix I/O resource conflict with PNP
2008-04-01 11:25:37 -07:00
Linus Torvalds
90c9d4f8ee Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Remove incorrect use of preempt_count() from leds-gpio
  leds: Fix potential leds-gpio oops
2008-04-01 11:24:20 -07:00
Linus Torvalds
3344203948 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: make sure input interfaces pin parent input devices
  Input: apm-power - fix crash when unloading modules
  Input: pxa27x - fix keypad KPC macros
2008-04-01 11:23:05 -07:00
Rafael J. Wysocki
7731ce63d9 ACPI PM: Restore the 2.6.24 suspend ordering
Some time ago it turned out that our suspend code ordering broke some
NVidia-based systems that hung if _PTS was executed with one of the PCI
devices, specifically a USB controller, in a low power state.

Then, it was noticed that the suspend code ordering was not compliant
with ACPI 1.0, although it was compliant with ACPI 2.0 (and later), and
it was argued that the code had to be changed for that reason (ref.
http://bugzilla.kernel.org/show_bug.cgi?id=9528).

So we did, but evidently we did wrong, because it's now turning out that
some systems have been broken by this change. Refs:
	http://bugzilla.kernel.org/show_bug.cgi?id=10340
	https://bugzilla.novell.com/show_bug.cgi?id=374217#c16

[ I said at that time that something like this might happend, but the
  majority of people involved thought that it was improbable due to the
  necessity to preserve the compliance of hardware with ACPI 1.0. ]

This actually is a quite serious regression from 2.6.24.

Moreover, the ACPI 1.0 ordering of suspend code introduced another issue
that I have only noticed recently.  Namely, if the suspend of one of
devices fails, the already suspended devices will be resumed without
executing _WAK before, which leads to problems on some systems (for
example, in such situations thermal management is broken on my HP
nx6325).  Consequently, it also breaks suspend debugging on the affected
systems.

Note also, that the requirement to execute _PTS before suspending
devices does not really make sense, because the device in question may
be put into a low power state at run time for a reason unrelated to a
system-wide suspend.

For the reasons outlined above, the change of the suspend ordering
should be reverted, which is done by the patch below.

[ Felix Möller: "I am the reporter from the original Novell Bug:

	https://bugzilla.novell.com/show_bug.cgi?id=374217

  I just tried current git head (two hours ago) with the patch (the one
  from the beginning of this thread) from Rafael and without it.  With
  the patch my MacBook does suspend without it does not." ]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Felix Möller <felix@derklecks.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01 11:21:08 -07:00
Mikulas Patocka
cabce28ec0 plip: replace spin_lock_irq with spin_lock_irqsave in irq context
Plip uses spin_lock_irq/spin_unlock_irq in its IRQ handler (called from
parport IRQ handler), the latter enables interrupts without parport
subsystem IRQ handler expecting it.

The bug can be seen if you compile kernel with lock dependency checking
and use plip --- it produces a warning.

This patch changes it to spin_lock_irqsave/spin_lock_irqrestore, so that
it doesn't enable interrupts when already disabled.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01 11:16:04 -07:00