Commit graph

51585 commits

Author SHA1 Message Date
Ron Mercer
0f80704498 qla3xxx: Cleanup: Fix link print statements.
Removed debug print statements and improved conditionals around informational statements.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-16 01:38:18 -08:00
\"Rafael J. Wysocki\
e1b86d8479 igb: Use device_set_wakeup_enable
Since dev->power.should_wakeup bit is used by the PCI core to
decide whether the device should wake up the system from sleep
states, set/unset this bit whenever WOL is enabled/disabled using
igb_set_wol().  Accordingly, use device_can_wakeup() for checking
if wake-up is supported by the device.

Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-16 01:35:57 -08:00
\"Rafael J. Wysocki\
de1264896c e1000: Use device_set_wakeup_enable
Since dev->power.should_wakeup bit is used by the PCI core to
decide whether the device should wake up the system from sleep
states, set/unset this bit whenever WOL is enabled/disabled using
e1000_set_wol().  Accordingly, use device_can_wakeup() for checking
if wake-up is supported by the device.

Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-16 01:35:56 -08:00
\"Rafael J. Wysocki\
6ff68026f4 e1000e: Use device_set_wakeup_enable
Since dev->power.should_wakeup bit is used by the PCI core to
decide whether the device should wake up the system from sleep
states, set/unset this bit whenever WOL is enabled/disabled using
e1000_set_wol().  Accordingly, use device_can_wakeup() for checking
if wake-up is supported by the device.

Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-16 01:35:45 -08:00
Joey Zhuo
5f5c4bdb14 via-velocity: enable perfect filtering for multicast packets
Signed-off-by: Joey Zhuo <joeyzhuo@via.com.tw>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-16 00:39:35 -08:00
Ron Madrid
605f196efb phy: Add support for Marvell 88E1118 PHY
This patch will add support for the Marvell 88E1118 PHY which supports gigabit ethernet among other things.

Signed-off-by: Ron Madrid <ron_madrid@sbcglobal.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-15 14:04:27 -08:00
Yevgeny Petrilin
d53b93f260 mlx4_en: Pause parameters per port
Before the change the driver reported the same pause parameters
for all the ports, even only one of them was modified.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-15 13:52:07 -08:00
David S. Miller
a2224ad387 Merge branch 'davem-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2008-11-14 15:36:57 -08:00
Lennert Buytenhek
3e44017b58 phylib: fix premature freeing of struct mii_bus
Commit 46abc02175 ("phylib: give mdio
buses a device tree presence") added a call to device_unregister() in
a situation where the caller did not intend for the device to be
freed yet, but apart from just unregistering the device from the
system, device_unregister() does an additional put_device() that is
intended to free it.

The right function to use in this situation is device_del(), which
unregisters the device from the system like device_unregister() does,
but without dropping the reference count an additional time.

Bug report from Bryan Wu <cooloney@kernel.org>.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Tested-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-14 18:19:40 -05:00
J. K. Cliburn
3b259e3659 atl1: Do not enumerate options unsupported by chip
Of the various WOL options provided in include/linux/ethtool.h, the
L1 NIC supports only magic packet.  Remove all options except magic
packet from the atl1 driver.

Signed-off-by: Jay Cliburn <jcliburn@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-14 18:19:18 -05:00
J. K. Cliburn
7ee0fddfe0 atl1e: fix broken multicast by removing unnecessary crc inversion
Inverting the crc after calling ether_crc_le() is unnecessary and breaks
multicast. Remove it.

Tested-by: David Madore <david.madore@ens.fr>
Signed-off-by: Jay Cliburn <jcliburn@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-14 18:18:55 -05:00
Andy Fleming
81183059e8 gianfar: Fix DMA unmap invocations
We weren't unmapping DMA memory, which will break when gianfar gets used
on systems with more than 32-bits of memory.  Also, it's just plain wrong.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-14 18:18:30 -05:00
Anton Vorontsov
18acfa2597 net/ucc_geth: Fix oops in uec_get_ethtool_stats()
p_{tx,rx}_fw_statistics_pram are special: they're available only when
a device is open. If the device is closed, we should just fill the data
with zeroes.

Fixes the following oops:

root@b1:~# ifconfig eth1 down
root@b1:~# ethtool -S eth1
Unable to handle kernel paging request for data at address 0x00000000
Faulting instruction address: 0xc01e1dcc
Oops: Kernel access of bad area, sig: 11 [#1]
[...]
NIP [c01e1dcc] uec_get_ethtool_stats+0x98/0x124
LR [c0287cc8] ethtool_get_stats+0xfc/0x23c
Call Trace:
[cfaadde0] [c0287ca8] ethtool_get_stats+0xdc/0x23c (unreliable)
[cfaade20] [c0288340] dev_ethtool+0x2fc/0x588
[cfaade50] [c0285648] dev_ioctl+0x290/0x33c
[cfaadea0] [c0272238] sock_ioctl+0x80/0x2ec
[cfaadec0] [c00b5ae4] vfs_ioctl+0x40/0xc0
[cfaadee0] [c00b5fa8] do_vfs_ioctl+0x78/0x20c
[cfaadf10] [c00b617c] sys_ioctl+0x40/0x74
[cfaadf40] [c00142d8] ret_from_syscall+0x0/0x38
[...]
---[ end trace b941007b2dfb9759 ]---
Segmentation fault

p.s. While at it, also remove u64 casts, they aren't needed.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-14 18:18:17 -05:00
David S. Miller
d8c3e23d06 niu: Bump driver version and release date.
This driver is pretty mature, and the worst of the known
problems has been fixed (the 32-bit failures due to readq
implementation).

So let's finally give it a version of 1.0

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-14 14:47:29 -08:00
Santwona Behera
e3e081e1d5 NIU: Add Sun CP3260 ATCA blade support
This patch adds support for the Sun CP3260 ATCA blade which is
a N2 based ATCA blade with 2 NIU ports. The NIU ports do not
have on-board PHY.

Signed-off-by: Santwona Behera <santwona.behera@sun.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-14 14:44:08 -08:00
Neil Horman
b2af2c1d3e bnx2: fix poll_controller to pass proper structures and check all rx queues
Fix bnx2 so that netpoll works properly.  Specifically:

1) Fix parameters to bnx2_interrupt to be a struct bnx2_napi rather than a
struct net_device

2) Fix poll_controller method to check every queue in the rx case so frames
aren't missed

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-12 16:23:44 -08:00
David S. Miller
ddd535c713 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2008-11-12 14:37:29 -08:00
David S. Miller
e23a59e1ca niu: Fix readq implementation when architecture does not provide one.
This fixes a TX hang reported by Jesper Dangaard Brouer.

When an architecutre cannot provide a fully functional
64-bit atomic readq/writeq, the driver must implement
it's own.  This is because only the driver can say whether
doing something like using two 32-bit reads to implement
the full 64-bit read will actually work properly.

In particular one of the issues is whether the top 32-bits
or the bottom 32-bits of the 64-bit register should be read
first.  There could be side effects, and in fact that is
exactly the problem here.

The TX_CS register has counters in the upper 32-bits and
state bits in the lower 32-bits.  A read clears the state
bits.

We would read the counter half before the state bit half.
That first read would clear the state bits, and then the
driver thinks that no interrupts are pending because the
interrupt indication state bits are seen clear every time.

Fix this by reading the bottom half before the upper half.

Tested-by: Jesper Dangaard Brouer <jdb@comx.dk>

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-12 14:32:54 -08:00
Johannes Berg
f7cd168645 hostap: pad the skb->cb usage in lieu of a proper fix
Like mac80211 did, this driver makes 'clever' use of skb->cb to pass
information along with an skb as it is requeued from the virtual device
to the physical wireless device.  Unfortunately, that trick no longer
works...

Unlike mac80211, code complexity and driver apathy makes this hack
the best option we have in the short run.  Hopefully someone will
eventually be motivated to code a proper fix before all the effected
hardware dies.

(Above text by me.  Johannes officially disavows all knowledge of this
hack. -- JWL)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-11-12 16:54:22 -05:00
Bob Jolliffe
f3c769185a rtl8187 : support for Sitecom WL-168 0001 v4
the Sitecom 0001 v4 with product id 0x0df6:0028, uses Realtek's
RTL8187B and work fine with new 2.6.27 driver.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-11-12 16:49:57 -05:00
Ivan Kuten
8f7c41d4ce rtl8187: Add Abocom USB ID
Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-11-12 16:49:38 -05:00
David S. Miller
d809a15956 Merge branch 'davem-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2008-11-11 16:29:03 -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
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
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