| Commit message (Collapse) | Author | Age |
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In case a reset is performed, rtl8169_rx_interrupt() is called from
process context instead of softirq context. Special care must be taken
to call appropriate network core services (netif_rx() instead of
netif_receive_skb()). VLAN handling also corrected.
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Diagnosed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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Hans de Goede identified a bug in p54p_check_tx_ring:
there are two ring indices. 1 => tx data and 3 => tx management.
But the old code had a constant "1" and this resulted in spurious
dma unmapping failures.
Cc: stable@kernel.org
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=583623
Bug-Identified-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Commit 6f461f6c7c961f0b1b73c0f27becf472a0ac606b
("e1000e: enable/disable ASPM L0s and L1 and ERT according to hardware errata")
oopses on one of my ppc64 boxes with a NULL pointer (0x4a):
Unable to handle kernel paging request for data at address 0x0000004a
Faulting instruction address: 0xc0000000004d2f1c
cpu 0xe: Vector: 300 (Data Access) at [c000000bec1833a0]
pc: c0000000004d2f1c: .e1000e_disable_aspm+0xe0/0x150
lr: c0000000004d2f0c: .e1000e_disable_aspm+0xd0/0x150
dar: 4a
[c000000bec1836d0] c00000000069b9d8 .e1000_probe+0x84/0xe8c
[c000000bec1837b0] c000000000386d90 .local_pci_probe+0x4c/0x68
[c000000bec183840] c0000000003872ac .pci_device_probe+0xfc/0x148
[c000000bec183900] c000000000409e8c .driver_probe_device+0xe4/0x1d0
[c000000bec1839a0] c00000000040a024 .__driver_attach+0xac/0xf4
[c000000bec183a40] c000000000409124 .bus_for_each_dev+0x9c/0x10c
[c000000bec183b00] c000000000409c1c .driver_attach+0x40/0x60
[c000000bec183b90] c0000000004085dc .bus_add_driver+0x150/0x328
[c000000bec183c40] c00000000040a58c .driver_register+0x100/0x1c4
[c000000bec183cf0] c00000000038764c .__pci_register_driver+0x78/0x128
Seems like pdev->bus->self == NULL. I haven't touched pci in a long time
so I'm trying to remember what this means (no pcie bridge perhaps?)
The patch below fixes the oops for me.
Signed-off-by: Anton Blanchard <anton@samba.org>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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"ifconfig eth0 up && ifconfig eth0 down" triggers:
| kobject (a8000000cfa5a480): tried to init an initialized object, something is seriously wrong.
| Call Trace:
| [<ffffffff8010aabc>] dump_stack+0x8/0x34
| [<ffffffff80293128>] kobject_init+0xe8/0xf0
| [<ffffffff802d922c>] device_initialize+0x2c/0x98
| [<ffffffff802d9cfc>] device_register+0x14/0x28
| [<ffffffff80312cd4>] mdiobus_register+0xdc/0x1e0
| [<ffffffff80314cf0>] sbmac_open+0x58/0x220
| [<ffffffff803519bc>] __dev_open+0x11c/0x180
| [<ffffffff8034d578>] __dev_change_flags+0x120/0x180
| [<ffffffff80351848>] dev_change_flags+0x20/0x78
| [<ffffffff803a753c>] devinet_ioctl+0x7cc/0x820
| [<ffffffff80339ac8>] sock_do_ioctl+0x38/0x90
| [<ffffffff8033a258>] compat_sock_ioctl_trans+0x408/0x1030
| [<ffffffff8033af30>] compat_sock_ioctl+0xb0/0xd0
| [<ffffffff80208b08>] compat_sys_ioctl+0xa0/0x18b8
| [<ffffffff80102f94>] handle_sys+0x114/0x130
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| sb1250-mac-mdio: probed
mdiobus_register() calls device_register() which initializes the kobj of
the device. mdiobus_unregister() calls only device_del() so we have one
reference left. That one is leaving with mdiobus_free() which is only
called on remove.
Since I don't see any reason why mdiobus_register()/mdiobus_unregister()
should happen in ->open()/->close() I move them to probe & exit.
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
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(CVE-2010-1173) (v4)
Ok, version 4
Change Notes:
1) Minor cleanups, from Vlads notes
Summary:
Hey-
Recently, it was reported to me that the kernel could oops in the
following way:
<5> kernel BUG at net/core/skbuff.c:91!
<5> invalid operand: 0000 [#1]
<5> Modules linked in: sctp netconsole nls_utf8 autofs4 sunrpc iptable_filter
ip_tables cpufreq_powersave parport_pc lp parport vmblock(U) vsock(U) vmci(U)
vmxnet(U) vmmemctl(U) vmhgfs(U) acpiphp dm_mirror dm_mod button battery ac md5
ipv6 uhci_hcd ehci_hcd snd_ens1371 snd_rawmidi snd_seq_device snd_pcm_oss
snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_ac97_codec snd soundcore
pcnet32 mii floppy ext3 jbd ata_piix libata mptscsih mptsas mptspi mptscsi
mptbase sd_mod scsi_mod
<5> CPU: 0
<5> EIP: 0060:[<c02bff27>] Not tainted VLI
<5> EFLAGS: 00010216 (2.6.9-89.0.25.EL)
<5> EIP is at skb_over_panic+0x1f/0x2d
<5> eax: 0000002c ebx: c033f461 ecx: c0357d96 edx: c040fd44
<5> esi: c033f461 edi: df653280 ebp: 00000000 esp: c040fd40
<5> ds: 007b es: 007b ss: 0068
<5> Process swapper (pid: 0, threadinfo=c040f000 task=c0370be0)
<5> Stack: c0357d96 e0c29478 00000084 00000004 c033f461 df653280 d7883180
e0c2947d
<5> 00000000 00000080 df653490 00000004 de4f1ac0 de4f1ac0 00000004
df653490
<5> 00000001 e0c2877a 08000800 de4f1ac0 df653490 00000000 e0c29d2e
00000004
<5> Call Trace:
<5> [<e0c29478>] sctp_addto_chunk+0xb0/0x128 [sctp]
<5> [<e0c2947d>] sctp_addto_chunk+0xb5/0x128 [sctp]
<5> [<e0c2877a>] sctp_init_cause+0x3f/0x47 [sctp]
<5> [<e0c29d2e>] sctp_process_unk_param+0xac/0xb8 [sctp]
<5> [<e0c29e90>] sctp_verify_init+0xcc/0x134 [sctp]
<5> [<e0c20322>] sctp_sf_do_5_1B_init+0x83/0x28e [sctp]
<5> [<e0c25333>] sctp_do_sm+0x41/0x77 [sctp]
<5> [<c01555a4>] cache_grow+0x140/0x233
<5> [<e0c26ba1>] sctp_endpoint_bh_rcv+0xc5/0x108 [sctp]
<5> [<e0c2b863>] sctp_inq_push+0xe/0x10 [sctp]
<5> [<e0c34600>] sctp_rcv+0x454/0x509 [sctp]
<5> [<e084e017>] ipt_hook+0x17/0x1c [iptable_filter]
<5> [<c02d005e>] nf_iterate+0x40/0x81
<5> [<c02e0bb9>] ip_local_deliver_finish+0x0/0x151
<5> [<c02e0c7f>] ip_local_deliver_finish+0xc6/0x151
<5> [<c02d0362>] nf_hook_slow+0x83/0xb5
<5> [<c02e0bb2>] ip_local_deliver+0x1a2/0x1a9
<5> [<c02e0bb9>] ip_local_deliver_finish+0x0/0x151
<5> [<c02e103e>] ip_rcv+0x334/0x3b4
<5> [<c02c66fd>] netif_receive_skb+0x320/0x35b
<5> [<e0a0928b>] init_stall_timer+0x67/0x6a [uhci_hcd]
<5> [<c02c67a4>] process_backlog+0x6c/0xd9
<5> [<c02c690f>] net_rx_action+0xfe/0x1f8
<5> [<c012a7b1>] __do_softirq+0x35/0x79
<5> [<c0107efb>] handle_IRQ_event+0x0/0x4f
<5> [<c01094de>] do_softirq+0x46/0x4d
Its an skb_over_panic BUG halt that results from processing an init chunk in
which too many of its variable length parameters are in some way malformed.
The problem is in sctp_process_unk_param:
if (NULL == *errp)
*errp = sctp_make_op_error_space(asoc, chunk,
ntohs(chunk->chunk_hdr->length));
if (*errp) {
sctp_init_cause(*errp, SCTP_ERROR_UNKNOWN_PARAM,
WORD_ROUND(ntohs(param.p->length)));
sctp_addto_chunk(*errp,
WORD_ROUND(ntohs(param.p->length)),
param.v);
When we allocate an error chunk, we assume that the worst case scenario requires
that we have chunk_hdr->length data allocated, which would be correct nominally,
given that we call sctp_addto_chunk for the violating parameter. Unfortunately,
we also, in sctp_init_cause insert a sctp_errhdr_t structure into the error
chunk, so the worst case situation in which all parameters are in violation
requires chunk_hdr->length+(sizeof(sctp_errhdr_t)*param_count) bytes of data.
The result of this error is that a deliberately malformed packet sent to a
listening host can cause a remote DOS, described in CVE-2010-1173:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=2010-1173
I've tested the below fix and confirmed that it fixes the issue. We move to a
strategy whereby we allocate a fixed size error chunk and ignore errors we don't
have space to report. Tested by me successfully
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda: Fix 0 dB for Packard Bell models using Conexant CX20549 (Venice)
ALSA: hda - Add quirk for Dell Inspiron 19T using a Conexant CX20582
ALSA: take tu->qlock with irqs disabled
ALSA: hda: Use olpc-xo-1_5 quirk for Toshiba Satellite P500-PSPGSC-01800T
ALSA: hda: Use olpc-xo-1_5 quirk for Toshiba Satellite Pro T130-15F
ALSA: hda - fix array indexing while creating inputs for Cirrus codecs
ALSA: es968: fix wrong PnP dma index
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BugLink: https://launchpad.net/bugs/541802
The OR's hardware distorts at PCM 100% because it does not correspond to
0 dB. Fix this in patch_cxt5045() for all Packard Bell models.
Reported-by: Valombre
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Add a quirk for all-in-one computer Dell Inspiron One 19 Touch to have proper
HP and Mic support.
Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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BugLink: https://launchpad.net/bugs/549267
The OR verified that using the olpc-xo-1_5 model quirk allows the
headphones to be audible when inserted into the jack. Capture was
also verified to work correctly.
Reported-by: Richard Gagne
Tested-by: Richard Gagne
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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BugLink: https://launchpad.net/bugs/573284
The OR verified that using the olpc-xo-1_5 model quirk allows the
headphones to be audible when inserted into the jack. Capture was
also verified to work correctly.
Reported-by: Andy Couldrake <acouldrake@googlemail.com>
Tested-by: Andy Couldrake <acouldrake@googlemail.com>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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This fixes a problem where cards show up as only having a single mixer
element, suppressing all sound output.
Signed-off-by: Brian J. Tarricone <brian@tarricone.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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We should disable irqs when we take the tu->qlock because it is used in
the irq handler. The only place that doesn't is
snd_timer_user_ccallback(). Most of the time snd_timer_user_ccallback()
is called with interrupts disabled but the the first ti->ccallback()
call in snd_timer_notify1() has interrupts enabled.
This was caught by lockdep which generates the following message:
> =================================
> [ INFO: inconsistent lock state ]
> 2.6.34-rc5 #5
> ---------------------------------
> inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
> dolphin/4003 [HC1[1]:SC0[0]:HE0:SE1] takes:
> (&(&tu->qlock)->rlock){?.+...}, at: [<f84ec472>] snd_timer_user_tinterrupt+0x28/0x132 [snd_timer]
> {HARDIRQ-ON-W} state was registered at:
> [<c1048de9>] __lock_acquire+0x654/0x1482
> [<c1049c73>] lock_acquire+0x5c/0x73
> [<c125ac3e>] _raw_spin_lock+0x25/0x34
> [<f84ec370>] snd_timer_user_ccallback+0x55/0x95 [snd_timer]
> [<f84ecc4b>] snd_timer_notify1+0x53/0xca [snd_timer]
Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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There is only one dma for the ESS ES968 based board.
Its index is 0 and not 1.
This make the es968 card working.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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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: joydev - allow binding to button-only devices
Input: elantech - ignore high bits in the position coordinates
Input: elantech - allow forcing Elantech protocol
Input: elantech - fix firmware version check
Input: ati_remote - add some missing devices from lirc_atiusb
Input: eeti_ts - cancel pending work when going to suspend
Input: Add support of Synaptics Clickpad device
Revert "Input: ALPS - add signature for HP Pavilion dm3 laptops"
Input: psmouse - ignore parity error for basic protocols
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Dance pads don't have an axis, so allow this kind of controllers
to be used via legacy joystick interface.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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In older versions of the elantech hardware/firmware those bits always
were unset, so it didn't actually matter, but newer versions seem to
use those high bits for something else, screwing up the coordinates
we report to the input layer for those devices.
Signed-off-by: Florian Ragwitz <rafl@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Apparently hardware vendors now ship elantech touchpads with different version
magic. This options allows for them to be tested easier with the current driver
in order to add their magic to the whitelist later.
Signed-off-by: Florian Ragwitz <rafl@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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The check determining whether device should use 4- or 6-byte packets
was trying to compare firmware with 2.48, but was failing on majors
greater than 2. The new check ensures that versions like 4.1 are
checked properly.
Signed-off-by: Florian Ragwitz <rafl@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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The (out-of-tree) lirc_atiusb driver has a much longer list of devices
it supports. Some of them look like they may just be guesses at possible
device IDs, but a few are definitely confirmed devices. This adds the
nVidia-branded RF receiver and the X10 Lola Wireless Video Sender device
(which contains an RF receiver) to the list of devices in ati_remote.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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This fixes a race between the suspend code and input events.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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The new type of touchpads can be detected via a new query command
0x0c. The clickpad flags are in cap[0]:4 and cap[1]:0 bits.
When the device is detected, the driver now reports only the left
button as the supported buttons so that X11 driver can detect that
the device is Clickpad. A Clickpad device gives the button events
only as the middle button. The kernel driver morphs to the left
button. The real handling of Clickpad is done rather in X driver
side.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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This reverts commit 5e28d8eb68c12eab9c4a47b42ba993a6420d71d3 since
the magic knock does not work for this model of the touchpad and the
device stays in PS/2 compatibility mode.
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Observing behavior of the other OS it appears that parity errors reported
by the keyboard controller are being ignored and the data is processed
as usual. Let's do the same for standard PS/2 protocols (bare, Intellimouse
and Intellimouse Explorer) to provide better compatibility. Thsi should fix
teh following bug:
https://bugzilla.kernel.org/show_bug.cgi?id=6105
Thanks for Damjan Jovanovic for locating the source of issue and ideas
for the patch.
Tested-by: Damjan Jovanovic <damjan.jov@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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The raid6 recovery code should immediately drop back to the optimized
synchronous path when a p+q dma resource is not available. Otherwise we
run the non-optimized/multi-pass async code in sync mode.
Verified with raid6test (NDISKS=255)
Applies to kernels >= 2.6.32.
Cc: <stable@kernel.org>
Acked-by: NeilBrown <neilb@suse.de>
Reported-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms/legacy: only enable load detection property on DVI-I
drm/radeon/kms: fix panel scaling adjusted mode setup
drivers/gpu/drm/drm_sysfs.c: sysfs files error handling
drivers/gpu/drm/radeon/radeon_atombios.c: range check issues
gpu: vga_switcheroo, fix lock imbalance
drivers/gpu/drm/drm_memory.c: fix check for end of loop
drivers/gpu/drm/via/via_video.c: fix off by one issue
drm/radeon/kms/agp The wrong AGP chipset can cause a NULL pointer dereference
drm/radeon/kms: r300 fix CS checker to allow zbuffer-only fastfill
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DVI-D doesn't have analog. This matches the avivo behavior.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This should duplicate exactly what the ddx does for both
legacy and avivo.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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In the original code we used "j" as an iterator but we used "i" as an
index.
- for (j = 0; j < i; j++)
- device_remove_file(&connector->kdev,
- &connector_attrs[i]);
Smatch complained about that because "i" was potentially passed the end of
the array. Which makes sense if we should be using "j" there.
I also thought that we should remove the files for &connector_attrs_opt1
but to do that I had to add separate iterators for &connector_attrs and
&connector_attrs_opt1.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This change makes the array larger, "MAX_SUPPORTED_TV_TIMING_V1_2" is 3
and the original size "MAX_SUPPORTED_TV_TIMING" is 2.
Also there were checks that were off by one.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Stanse found that one error path in vga_switcheroo_debugfs_write omits to
unlock vgasr_mutex. Fix that.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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"agpmem" is never NULL here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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"fx->lock" is used as the index in "dev_priv->decoder_queue[fx->lock]"
which is an array of "VIA_NR_XVMC_LOCKS" elements.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Selecting the wrong or no CONFIG_AGP_* chipset can cause a NULL pointer
dereference when combined with CONFIG_DRM_RADEON_KMS and an old system
with a R100 AGP card (should effect other cards too). The agp field
will be set to NULL if no suitable AGP chipset driver is loaded,
drm_agp_acquire already preforms a suitable NULL check so it can be used
directly.
Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Marek Olšák <maraeo@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
powernow-k8: Fix frequency reporting
x86: Fix parse_reservetop() build failure on certain configs
x86: Fix NULL pointer access in irq_force_complete_move() for Xen guests
x86: Fix 'reservetop=' functionality
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With F10, model 10, all valid frequencies are in the ACPI _PST table.
Cc: <stable@kernel.org> # 33.x 32.x
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
LKML-Reference: <1270065406-1814-6-git-send-email-bp@amd64.org>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Commit e67a807 ("x86: Fix 'reservetop=' functionality") added a
fixup_early_ioremap() call to parse_reservetop() and declared it
in io.h.
But asm/io.h was only included indirectly - and on some configs
not at all, causing a build failure on those configs.
Cc: Liang Li <liang.li@windriver.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Wang Chen <wangchen@cn.fujitsu.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1272621711-8683-1-git-send-email-liang.li@windriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Upstream PV guests fail to boot because of a NULL pointer in
irq_force_complete_move(). It is possible that xen guests have
irq_desc->chip_data = NULL.
Test for NULL chip_data pointer before attempting to complete an irq move.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
LKML-Reference: <20100427152434.16193.49104.sendpatchset@prarit.bos.redhat.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@kernel.org> [2.6.33]
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When specifying the 'reservetop=0xbadc0de' kernel parameter,
the kernel will stop booting due to a early_ioremap bug that
relates to commit 8827247ff.
The root cause of boot failure problem is the value of
'slot_virt[i]' was initialized in setup_arch->early_ioremap_init().
But later in setup_arch, the function 'parse_early_param' will
modify 'FIXADDR_TOP' when 'reservetop=0xbadc0de' being specified.
The simplest fix might be use __fix_to_virt(idx0) to get updated
value of 'FIXADDR_TOP' in '__early_ioremap' instead of reference
old value from slot_virt[slot] directly.
Changelog since v0:
-v1: When reservetop being handled then FIXADDR_TOP get
adjusted, Hence check prev_map then re-initialize slot_virt and
PMD based on new FIXADDR_TOP.
-v2: place fixup_early_ioremap hence call early_ioremap_init in
reserve_top_address to re-initialize slot_virt and
corresponding PMD when parse_reservertop
-v3: move fixup_early_ioremap out of reserve_top_address to make
sure other clients of reserve_top_address like xen/lguest won't
broken
Signed-off-by: Liang Li <liang.li@windriver.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Wang Chen <wangchen@cn.fujitsu.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1272621711-8683-1-git-send-email-liang.li@windriver.com>
[ fixed three small cleanliness details in fixup_early_ioremap() ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
KEYS: Fix RCU handling in key_gc_keyring()
KEYS: Fix an RCU warning in the reading of user keys
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key_gc_keyring() needs to either hold the RCU read lock or hold the keyring
semaphore if it's going to scan the keyring's list. Given that it only needs
to read the key list, and it's doing so under a spinlock, the RCU read lock is
the thing to use.
Furthermore, the RCU check added in e7b0a61b7929632d36cf052d9e2820ef0a9c1bfe is
incorrect as holding the spinlock on key_serial_lock is not grounds for
assuming a keyring's pointer list can be read safely. Instead, a simple
rcu_dereference() inside of the previously mentioned RCU read lock is what we
want.
Reported-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
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Fix an RCU warning in the reading of user keys:
===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
security/keys/user_defined.c:202 invoked rcu_dereference_check() without protection!
other info that might help us debug this:
rcu_scheduler_active = 1, debug_locks = 0
1 lock held by keyctl/3637:
#0: (&key->sem){+++++.}, at: [<ffffffff811a80ae>] keyctl_read_key+0x9c/0xcf
stack backtrace:
Pid: 3637, comm: keyctl Not tainted 2.6.34-rc5-cachefs #18
Call Trace:
[<ffffffff81051f6c>] lockdep_rcu_dereference+0xaa/0xb2
[<ffffffff811aa55f>] user_read+0x47/0x91
[<ffffffff811a80be>] keyctl_read_key+0xac/0xcf
[<ffffffff811a8a06>] sys_keyctl+0x75/0xb7
[<ffffffff81001eeb>] system_call_fastpath+0x16/0x1b
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
ocfs2: Avoid a gcc warning in ocfs2_wipe_inode().
ocfs2: Avoid direct write if we fall back to buffered I/O
ocfs2_dlmfs: Fix math error when reading LVB.
ocfs2: Update VFS inode's id info after reflink.
ocfs2: potential ERR_PTR dereference on error paths
ocfs2: Add directory entry later in ocfs2_symlink() and ocfs2_mknod()
ocfs2: use OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_mknod error path
ocfs2: use OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_symlink error path
ocfs2: add OCFS2_INODE_SKIP_ORPHAN_DIR flag and honor it in the inode wipe code
ocfs2: Reset status if we want to restart file extension.
ocfs2: Compute metaecc for superblocks during online resize.
ocfs2: Check the owner of a lockres inside the spinlock
ocfs2: one more warning fix in ocfs2_file_aio_write(), v2
ocfs2_dlmfs: User DLM_* when decoding file open flags.
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gcc warns that a variable is uninitialized. It's actually handled, but
an early return fools gcc. Let's just initialize the variable to a
garbage value that will crash if the usage is ever broken.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
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when we fall back to buffered write from direct write, we call
__generic_file_aio_write() but that will end up doing direct write
even we are only prepared to do buffered write because the file
has the O_DIRECT flag set. This is a fix for
https://bugzilla.novell.com/show_bug.cgi?id=591039
revised with Joel's comments.
Signed-off-by: Li Dongyang <lidongyang@novell.com>
Acked-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2-mark into ocfs2-fixes
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If we get a failure during creation of an inode we'll allow the orphan code
to remove the inode, which is correct. However, we need to ensure that we
don't get any errors after the call to ocfs2_add_entry(), otherwise we could
leave a dangling directory reference. The solution is simple - in both
cases, all I had to do was move ocfs2_dentry_attach_lock() above the
ocfs2_add_entry() call.
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
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Mark the inode with flag OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_mknod, so we
can kill the inode in case of error.
[ Fixed up comment style -Mark ]
Signed-off-by: Li Dongyang <lidongyang@novell.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
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