Commit Graph

118942 Commits

Author SHA1 Message Date
Alexey Starikovskiy
dd15f8c42a ACPI: EC: wait for last write gpe
There is a possibility that EC might break if next command is
issued within 1 us after write or burst-disable command.

Suggestd-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-11 18:34:19 -05:00
Alan Jenkins
f8248434e6 ACPI: EC: make kernel messages more useful when GPE storm is detected
Make sure we can tell if the GPE storm workaround gets activated,
and avoid flooding the logs afterwards.

http://bugzilla.kernel.org/show_bug.cgi?id=11841
"plenty of line "ACPI: EC: non-query interrupt received,
 switching to interrupt mode" in dmesg"

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-11 18:34:06 -05:00
Alexey Starikovskiy
1cfe62c801 ACPI: EC: revert msleep patch
With the better solution for EC interrupt storm issue,
there is no need to use msleep over udelay.

References:
	http://bugzilla.kernel.org/show_bug.cgi?id=11810
	http://bugzilla.kernel.org/show_bug.cgi?id=10724

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-11 18:33:57 -05:00
Kay Sievers
06190d8415 dmaengine: struct device - replace bus_id with dev_name(), dev_set_name()
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-11-11 13:12:33 -07:00
Dan Williams
65e503814d iop-adma: use iop_paranoia() for debug BUG_ONs
Now that the critical read back to flush the next descriptor address is
fixed we can downgrade some BUG_ONs that need only be enabled when testing
changes to the driver.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-11-11 13:12:33 -07:00
Dan Williams
137cb55c6d iop-adma: add a dummy read to flush next descriptor update
The current dummy read references the wrong address allowing the next
descriptor address update to linger in the store buffer and get passed
by an 'append' event.

This issue was uncovered by the change from strongly-ordered to device
memory for the adma registers.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-11-11 13:12:33 -07:00
Avi Kivity
e17d1dc086 KVM: Fix pit memory leak if unable to allocate irq source id
Reported-By: Daniel Marjamäki <danielm77@spray.se>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-11-11 21:01:51 +02:00
Xiantao Zhang
c60ff51eb2 KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMP
In the case of !CONFIG_SMP, raw_spinlock_t is empty and the spinlock functions
don't build.  Fix by defining spinlock functions for the uniprocessor case.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11 21:01:30 +02:00
Sheng Yang
928d4bf747 KVM: VMX: Set IGMT bit in EPT entry
There is a potential issue that, when guest using pagetable without vmexit when
EPT enabled, guest would use PAT/PCD/PWT bits to index PAT msr for it's memory,
which would be inconsistent with host side and would cause host MCE due to
inconsistent cache attribute.

The patch set IGMT bit in EPT entry to ignore guest PAT and use WB as default
memory type to protect host (notice that all memory mapped by KVM should be WB).

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11 21:00:37 +02:00
Avi Kivity
ca93e992fd KVM: Require the PCI subsystem
PCI device assignment makes calls to pci code, so require it to be built
into the kernel.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-11-11 20:56:13 +02:00
Rakib Mullick
a29a2af378 x86: KVM guest: fix section mismatch warning in kvmclock.c
WARNING: arch/x86/kernel/built-in.o(.text+0x1722c): Section mismatch
in reference from the function kvm_setup_secondary_clock() to the
function .devinit.text:setup_secondary_APIC_clock()
The function kvm_setup_secondary_clock() references
the function __devinit setup_secondary_APIC_clock().
This is often because kvm_setup_secondary_clock lacks a __devinit
annotation or the annotation of setup_secondary_APIC_clock is wrong.

Signed-off-by: Md.Rakib H. Mullick <rakib.mullick@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11 20:55:10 +02:00
Linus Torvalds
f21f237cf5 Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  timers: handle HRTIMER_CB_IRQSAFE_UNLOCKED correctly from softirq context
  nohz: disable tick_nohz_kick_tick() for now
  irq: call __irq_enter() before calling the tick_idle_check
  x86: HPET: enter hpet_interrupt_handler with interrupts disabled
  x86: HPET: read from HPET_Tn_CMP() not HPET_T0_CMP
  x86: HPET: convert WARN_ON to WARN_ON_ONCE
2008-11-11 10:53:50 -08:00
Xiantao Zhang
a2e4e28946 KVM: ia64: Use guest signal mask when blocking
Before a vcpu blocks, it should switch to the guest signal mask to allow
signals to unblock it.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11 20:53:34 +02:00
Marcelo Tosatti
c41ef344de KVM: MMU: increase per-vcpu rmap cache alloc size
The page fault path can use two rmap_desc structures, if:

- walk_addr's dirty pte update allocates one rmap_desc.
- mmu_lock is dropped, sptes are zapped resulting in rmap_desc being
freed.
- fetch->mmu_set_spte allocates another rmap_desc.

Increase to 4 for safety.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11 20:53:34 +02:00
Linus Torvalds
2f96cb57cd Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: release buddies on yield
  fix for account_group_exec_runtime(), make sure ->signal can't be freed under rq->lock
  sched: clean up debug info
2008-11-11 10:52:25 -08:00
Linus Torvalds
09eb3b5b1b Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ring-buffer: prevent infinite looping on time stamping
  ftrace: disable tracing on resize
  ftrace: fix breakage in bin_fmt results
  ftrace: ftrace.txt version update
  ftrace: update txt document
2008-11-11 10:51:50 -08:00
Linus Torvalds
04ca2c17e3 Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  [XFS] XFS: Check for valid transaction headers in recovery
  [XFS] handle memory allocation failures during log initialisation
  [XFS] Account for allocated blocks when expanding directories
  [XFS] Wait for all I/O on truncate to zero file size
  [XFS] Fix use-after-free with log and quotas
2008-11-11 09:32:58 -08:00
Linus Torvalds
ad1164b79f Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (21 commits)
  ocfs2: Check search result in ocfs2_xattr_block_get()
  ocfs2: fix printk related build warnings in xattr.c
  ocfs2: truncate outstanding block after direct io failure
  ocfs2/xattr: Proper hash collision handle in bucket division
  ocfs2: return 0 in page_mkwrite to let VFS retry.
  ocfs2: Set journal descriptor to NULL after journal shutdown
  ocfs2: Fix check of return value of ocfs2_start_trans() in xattr.c.
  ocfs2: Let inode be really deleted when ocfs2_mknod_locked() fails
  ocfs2: Fix checking of return value of new_inode()
  ocfs2: Fix check of return value of ocfs2_start_trans()
  ocfs2: Fix some typos in xattr annotations.
  ocfs2: Remove unused ocfs2_restore_xattr_block().
  ocfs2: Don't repeat ocfs2_xattr_block_find()
  ocfs2: Specify appropriate journal access for new xattr buckets.
  ocfs2: Check errors from ocfs2_xattr_update_xattr_search()
  ocfs2: Don't return -EFAULT from a corrupt xattr entry.
  ocfs2: Check xattr block signatures properly.
  ocfs2: add handler_map array bounds checking
  ocfs2: remove duplicate definition in xattr
  ocfs2: fix function declaration and definition in xattr
  ...
2008-11-11 09:31:32 -08:00
Alan Cox
0906dd9df2 telephony: trivial: fix up email address
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-11 09:30:23 -08:00
Alan Cox
8eb04cf340 tty: trivial - fix up email addresses in tty related stuff
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-11 09:30:10 -08:00
Linus Torvalds
853041f089 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (35 commits)
  V4L/DVB (9516): cx18: Move DVB buffer transfer handling from irq handler to work_queue
  V4L/DVB (9557): gspca: Small changes for the sensor HV7131B in zc3xx.
  V4L/DVB (9556): gspca: Bad init sequence for sensor HV7131B in zc3xx.
  V4L/DVB (9549): gspca: Fix a typo in one of gspca chips name.
  V4L/DVB (9515): cx18: Use correct Mailbox IRQ Ack values and misc IRQ handling cleanup
  V4L/DVB (9493): kconfig patch
  V4L/DVB (9527): af9015: fix compile warnings
  V4L/DVB (9524): af9013: fix bug in status reading
  V4L/DVB (9511): cx18: Mark CX18_CPU_DE_RELEASE_MDL as a slow API call
  V4L/DVB (9510): cx18: Fix write retries for registers that always change - part 2.
  V4L/DVB (9506): ivtv/cx18: fix test whether modules should be loaded or not.
  V4L/DVB (9499): cx88-mpeg: final fix for analogue only compilation + de-alloc fix
  V4L/DVB (9496): cx88-blackbird: bugfix: cx88-blackbird-mpeg-users
  V4L/DVB (9495): cx88-blackbird: bugfix: cx88-blackbird-poll-fix
  V4L/DVB (9494): anysee: initialize anysee_usb_mutex statically
  V4L/DVB (9492): unplug oops from dvb_frontend_init...
  V4L/DVB (9486): ivtv/ivtvfb: no longer experimental
  V4L/DVB (9485): ivtv: remove incorrect V4L1 & tvaudio dependency
  V4L/DVB (9482): Documentation, especially regarding audio and informational links
  V4L/DVB (9475): cx18: Disable write retries for registers that always change - part 1.
  ...
2008-11-11 09:25:21 -08:00
Linus Torvalds
e892873c5d Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Update desktop/server defconfigs
  powerpc: Fix msr check in compat_sys_swapcontext
  powerpc: Repair device bindings documentation
  powerpc: Updated Freescale PPC related defconfigs
  powerpc: Update QE/CPM2 usb_ctlr structures for USB support
  powerpc/86xx: Correct SOC bus-frequency in GE Fanuc SBC610 DTS
  powerpc: Fix Book-E watchdog timer interval setting
  powerpc/fsl-booke: Fix synchronization bug w/local tlb invalidates
2008-11-11 09:24:31 -08:00
Linus Torvalds
eda1be631a Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/i915: Move legacy breadcrumb out of the reserved status page area
  drm/i915: Filter pci devices based on PCI_CLASS_DISPLAY_VGA
  drm/radeon: map registers at load time
  drm: Remove infrastructure for supporting i915's vblank swapping.
  i915: Remove racy delayed vblank swap ioctl.
  i915: Don't whine when pci_enable_msi() fails.
  i915: Don't attempt to short-circuit object_wait_rendering by checking domains.
  i915: Clean up sarea pointers on leavevt
  i915: Save/restore MCHBAR_RENDER_STANDBY on GM965/GM45
2008-11-11 09:22:24 -08:00
Linus Torvalds
5da38d3282 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: fix last_reset timestamp handling
  libata: Avoid overflow in ata_tf_read_block() when tf->hba_lbal > 127
  [libata] pata_pcmcia: another memory card support
  [libata] pata_sch: notice attached slave devices
  [libata] pata_cs553*.c: cleanup kernel-doc
2008-11-11 09:21:28 -08:00
Linus Torvalds
7e2cec8631 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Update defconfig.
  Revert "sparc: correct section of current_pc()"
2008-11-11 09:20:43 -08:00
Linus Torvalds
0a4cf2c878 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  dsa: fix master interface allmulti/promisc handling
  dsa: fix skb->pkt_type when mac address of slave interface differs
  net: fix setting of skb->tail in skb_recycle_check()
  net: fix /proc/net/snmp as memory corruptor
  mac80211: fix a buffer overrun in station debug code
  netfilter: payload_len is be16, add size of struct rather than size of pointer
  ipv6: fix ip6_mr_init error path
  [4/4] dca: fixup initialization dependency
  [3/4] I/OAT: fix async_tx.callback checking
  [2/4] I/OAT: fix dma_pin_iovec_pages() error handling
  [1/4] I/OAT: fix channel resources free for not allocated channels
  ssb: Fix DMA-API compilation for non-PCI systems
  SSB: hide empty sub menu
  vlan: Fix typos in proc output string
  [netdrvr] usb/hso: Cleanup rfkill error handling
  sfc: Correct address of gPXE boot configuration in EEPROM
  el3_common_init() should be __devinit, not __init
  hso: rfkill type should be WWAN
  mlx4_en: Start port error flow bug fix
  af_key: mark policy as dead before destroying
2008-11-11 09:20:29 -08:00
Takashi Iwai
4f1e6bc364 ALSA: hda - Fix input pin initialization for STAC/IDT codecs
The input pins are sometimes not initialized properly because
of the optimization check of the current pinctl code.

Force to initialize the mic input pins so that they can be set up
properly even if they were in a weird state.  But keep other input
pins if already set up as input, since this could be an extra mic
pin.

Reference: Novell bnc#443738
	https://bugzilla.novell.com/show_bug.cgi?id=443738

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-11 18:00:53 +01:00
Takashi Iwai
355a0ec471 ALSA: hda - Add missing analog-mux mixer creation for STAC9200
The creation of analog-mux mixer element is missing in
patch_stac9200() due to the dynamic allocation patch.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-11 16:46:19 +01:00
Peter Zijlstra
2002c69595 sched: release buddies on yield
Clear buddies on yield, so that the buddy rules don't schedule them
despite them being placed right-most.

This fixed a performance regression with yield-happy binary JVMs.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Lin Ming <ming.m.lin@intel.com>
2008-11-11 11:57:22 +01:00
Andy Walls
1d6782bda5 V4L/DVB (9516): cx18: Move DVB buffer transfer handling from irq handler to work_queue
cx18: Move DVB buffer transfer handling from irq handler to work_queue thread.
In order to properly lock the epu2cpu mailbox for driver to CX23418 commands,
the DVB/TS buffer handling needs to be moved from the IRQ handler and IRQ
context to a work queue.  This work_queue implmentation is strikingly similar
to the ivtv implementation - for better or worse.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:33 -02:00
Jean-Francois Moine
c9ff1b689a V4L/DVB (9557): gspca: Small changes for the sensor HV7131B in zc3xx.
- touch only one register for brightness change
- no quality control
- don't probe again at streamon time.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:32 -02:00
Jean-Francois Moine
03bf75654c V4L/DVB (9556): gspca: Bad init sequence for sensor HV7131B in zc3xx.
This patch fixes the H flip and the R & B color inversion of mode 320x240.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:32 -02:00
Krzysztof Helt
93d0f0385a V4L/DVB (9549): gspca: Fix a typo in one of gspca chips name.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:31 -02:00
Andy Walls
465f8a805d V4L/DVB (9515): cx18: Use correct Mailbox IRQ Ack values and misc IRQ handling cleanup
cx18: Use correct Mailbox IRQ Ack values and misc IRQ handling cleanup.
The SCB field definitions for Ack IRQ's for mailboxes were inconsistent with
the bitmasks being loaded into those SCB fields and the SW2 Ack IRQ handling
logic.  Renamed fields in SCB to make things consistent and did misc IRQ
handling cleanups: removing legacy ivtv dma_reg_lock, HPU IRQ flags, etc.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:31 -02:00
Frederic CAND
17ff61cb20 V4L/DVB (9493): kconfig patch
Ok I made a patch that converts gspca kconfig file to a more standard=
one, with tabs + 2 white spaces, so that if a warning is added it still
compiles
please find it attached

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:30 -02:00
Antti Palosaari
349d042f34 V4L/DVB (9527): af9015: fix compile warnings
- use static to avoid compile warnings

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:30 -02:00
roel kluin
891bd1331e V4L/DVB (9524): af9013: fix bug in status reading
- ! has a higher precedence than &

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:29 -02:00
Andy Walls
4e6b61047d V4L/DVB (9511): cx18: Mark CX18_CPU_DE_RELEASE_MDL as a slow API call
cx18: Mark CX18_CPU_DE_RELEASE_MDL as a slow API call.
Give the encoder time to complete the MDL release before destroying the
encoder internal task.  This avoids an encoder lockup on the next digital
capture and error messages about buffers being returned for an inactive
encoder task handle.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:29 -02:00
Andy Walls
f056d29eeb V4L/DVB (9510): cx18: Fix write retries for registers that always change - part 2.
cx18: Fix write retries for registers that always change - part 2.
Some registers, especially interrupt related ones, will never read
back the value just written.  Modified interrupt register readback
checks to make sure the intended effect was achieved.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:28 -02:00
Hans Verkuil
58ae1c2318 V4L/DVB (9506): ivtv/cx18: fix test whether modules should be loaded or not.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:28 -02:00
Darron Broad
1a8dc86db1 V4L/DVB (9499): cx88-mpeg: final fix for analogue only compilation + de-alloc fix
Final fix for when analogue only is selected
for compilation (ie, !CX88_DVB)

This tidies up previous fix and adds missing
de-alloc memory leak on fault (eg, if fe1 fails to alloc
where fe0 was allocated).

Signed-off-by: Darron Broad <darron@kewl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:27 -02:00
Frederic CAND
9c8e0a260e V4L/DVB (9496): cx88-blackbird: bugfix: cx88-blackbird-mpeg-users
Allows multiple access to the mpeg device

Signed-off-by: Frederic CAND <frederic.cand@anevia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:27 -02:00
Frederic CAND
a2482377c9 V4L/DVB (9495): cx88-blackbird: bugfix: cx88-blackbird-poll-fix
Starts encoder not only on a read call but also on a poll command.

Signed-off-by: Frederic CAND <frederic.cand@anevia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:27 -02:00
Akinobu Mita
dec0c46ac2 V4L/DVB (9494): anysee: initialize anysee_usb_mutex statically
anysee_usb_mutex is initialized at every time the anysee device is probed.
If the second anysee device is probed while anysee_usb_mutex is locked by
the first anysee device, the mutex is broken.

This patch fixes by initialize anysee_usb_mutex statically rather
than initialize at probe time.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:26 -02:00
Daniel J Blueman
8268c8f545 V4L/DVB (9492): unplug oops from dvb_frontend_init...
When inadvertently hot-unplugging a WT-220U USB DVB-T receiver with
2.6.24, I was met with an oops [1]. The problem is relevant to
2.6.25/26-rc also.

dvb_frontend_init() was called either from re-creation of the kdvb-fe0
thread - seems unlikely, or someone called
dvb_frontend_reinitialise(), causing this path in the thread - really
unlikely, as I can't find any call-site for it.

Either way, quite a number of drivers call dvb_usb_generic_rw() [2]
without checking the validity of the relevant member in the
dvb_usb_device struct - which had changed. Having dvb_usb_generic_rw()
sanity-check and fail (rather than loading from 0x120) seems
reasonable defensive programming [3], in light of it being called in
this way.

The problem with this, is that drivers don't check the return code of
the init call [4]. Does it make sense to cook a patch which allows the
failure to be propagated back up, or am I missing something else?

Thanks,
  Daniel

<whoops, hot unplug>

[83711.538485] dvb-usb: bulk message failed: -71 (1/0)
[83711.538875] dvb-usb: bulk message failed: -71 (1/0)
[83711.538899] usb 7-5: USB disconnect, address 3
[83711.538905] dvb-usb: bulk message failed: -22 (1/0)
[83711.538924] dvb-usb: bulk message failed: -22 (1/0)
[83711.538943] dvb-usb: bulk message failed: -22 (1/0)
[83711.588979] dvb-usb: bulk message failed: -22 (1/0)
[83711.589031] dvb-usb: bulk message failed: -22 (1/0)
[83711.589078] dvb-usb: bulk message failed: -22 (1/0)
[83711.589122] dvb-usb: bulk message failed: -22 (1/0)
[83711.589167] dvb-usb: bulk message failed: -22 (1/0)
[83711.639233] dvb-usb: bulk message failed: -22 (1/0)
[83711.639282] dvb-usb: bulk message failed: -22 (1/0)
[83711.639330] dvb-usb: bulk message failed: -22 (1/0)
[83711.639374] dvb-usb: bulk message failed: -22 (1/0)
[83711.639421] dvb-usb: bulk message failed: -22 (1/0)
[83711.658391] dvb-usb: bulk message failed: -22 (1/0)
[83768.174281] dvb-usb: bulk message failed: -22 (2/-32512)
[83768.174350] Unable to handle kernel NULL pointer
dereference<6>dvb-usb: WideView WT-220U PenType Receiver
(Typhoon/Freecom) successfully deinitialized and disconnected.
[83768.174459]  at 0000000000000120 RIP:
[83768.174459]  [<ffffffff88339b4f>] :dvb_usb:dvb_usb_generic_rw+0x2f/0x1a0
[83768.174580] PGD 0
[83768.174643] Oops: 0000 [1] SMP
[83768.174723] CPU 0
[83768.174782] Modules linked in: nfsd auth_rpcgss exportfs nfs lockd
nfs_acl sunrpc af_packet xt_length ipt_tos ipt_TOS xt_CLASSIFY sch_sfq
sch_htb ipt_MASQUERADE ipt_REDIRECT xt_limit xt_state xt_tcpudp
iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack iptable_mangle
iptable_filter ip_tables x_tables xfs sbp2 parport_pc lp parport loop
ftdi_sio usbserial evdev dvb_usb_dtt200u dvb_usb dvb_core i2c_core
sky2 iTCO_wdt iTCO_vendor_support snd_hda_intel shpchp snd_pcm
snd_timer snd_page_alloc snd_hwdep snd pci_hotplug soundcore ipv6
button intel_agp ext3 jbd mbcache sg sd_mod ata_generic pata_acpi ahci
ata_piix libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore
e1000 thermal processor fan fbcon tileblit font bitblit softcursor
fuse
[83768.176968] Pid: 5732, comm: kdvb-fe-0 Not tainted 2.6.24-16-server #1
[83768.177009] RIP: 0010:[<ffffffff88339b4f>]  [<ffffffff88339b4f>]
:dvb_usb:dvb_usb_generic_rw+0x2f/0x1a0
[83768.177096] RSP: 0018:ffff810021939df0  EFLAGS: 00010286
[83768.177138] RAX: ffff81003bc7cc00 RBX: 0000000000000001 RCX: 0000000000000000
[83768.177181] RDX: 0000000000000001 RSI: ffff810021939e67 RDI: 0000000000000000
[83768.177223] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[83768.177267] R10: ffff810001009880 R11: 0000000000000001 R12: ffff81003c10b400
[83768.177311] R13: ffff81003c10b5b0 R14: ffff810021939ec0 R15: 0000000000000000
[83768.177354] FS:  0000000000000000(0000) GS:ffffffff805c3000(0000)
knlGS:0000000000000000
[83768.177409] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[83768.177449] CR2: 0000000000000120 CR3: 0000000000201000 CR4: 00000000000006e0
[83768.177491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[83768.177534] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[83768.177576] Process kdvb-fe-0 (pid: 5732, threadinfo
ffff810021938000, task ffff81003bd1b7a0)
[83768.177629] Stack:  ffff81003e9b6828 0000000000000000
ffff8100378369f8 0000000000000000
[83768.177800]  ffff81003bd1b7a0 ffff810037836d48 ffff81003bc7cc30
ffff81003c10b400
[83768.177943]  ffff81003c10b5b0 ffff810021939ec0 ffff81003c10b5e0
ffffffff88342452
[83768.178054] Call Trace:
[83768.178130]  [<ffffffff88342452>] :dvb_usb_dtt200u:dtt200u_fe_init+0x22/0x30
[83768.178178]  [<ffffffff88339f6a>] :dvb_usb:dvb_usb_fe_wakeup+0x3a/0x50
[83768.178229]  [<ffffffff88325c41>] :dvb_core:dvb_frontend_init+0x21/0x70
[83768.178278]  [<ffffffff8832746b>] :dvb_core:dvb_frontend_thread+0x8b/0x370
[83768.178329]  [<ffffffff883273e0>] :dvb_core:dvb_frontend_thread+0x0/0x370
[83768.178382]  [<ffffffff80253e3b>] kthread+0x4b/0x80
[83768.178427]  [<ffffffff8020d198>] child_rip+0xa/0x12
[83768.178473]  [<ffffffff80253df0>] kthread+0x0/0x80
[83768.178514]  [<ffffffff8020d18e>] child_rip+0x0/0x12
[83768.178557]
[83768.178594]
[83768.178594] Code: 44 8b 87 20 01 00 00 49 89 f4 45 89 ce 45 85 c0
0f 84 ad 00
[83768.179167] RIP  [<ffffffff88339b4f>] :dvb_usb:dvb_usb_generic_rw+0x2f/0x1a0
[83768.179234]  RSP <ffff810021939df0>
[83768.179271] CR2: 0000000000000120
[83768.179419] ---[ end trace dba8483163cb1700 ]---

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:26 -02:00
Hans Verkuil
7c34158f20 V4L/DVB (9486): ivtv/ivtvfb: no longer experimental
Remove the EXPERIMENTAL tag.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:25 -02:00
Hans Verkuil
6a95ec5906 V4L/DVB (9485): ivtv: remove incorrect V4L1 & tvaudio dependency
ivtv used tvaudio in the past and at the time tvaudio required V4L1.
Since tvaudio is no longer dependent on V4L1 and since ivtv actually
no longer uses tvaudio at all, this is no removed from Kconfig.

Without this patch ivtv won't be build if V4L1 is disabled.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:25 -02:00
Tobias Lorenz
6aadf82eb8 V4L/DVB (9482): Documentation, especially regarding audio and informational links
This patch adds a recommendation to select SND_USB_AUDIO for listing and
adds a documentation file for si470x.

Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:24 -02:00
Andy Walls
f3a3e881b8 V4L/DVB (9475): cx18: Disable write retries for registers that always change - part 1.
cx18: Disable write retries for registers that always change - part 1.
Interrupt related registers will likely not read back the value we just wrote.
Disable retries for these registers for now to avoid accidently discarding
interrupts.  More intelligent read back verification criteria are needed for
these and other registers (e.g. GPIO line registers), which will be addressed in
subsequent changes.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:24 -02:00
Jean Delvare
8182ff69f8 V4L/DVB (9372): Minor fixes to the saa7110 driver
* Apparently the author of the saa7110 driver was confused by the
  number of outputs returned by DECODER_GET_CAPABILITIES. Of course a
  decoder chip has no analog ouputs, but it must have at least one
  digital output.

* Fix an off-by-one error when checking the input value of
  DECODER_SET_INPUT.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-11-11 08:11:23 -02:00