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Please apply to 2.6.{14,15,16} -stable, thanks a lot.
From: Robert Olsson <robert.olsson@its.uu.se>
[FIB_TRIE]: Fix leaf freeing.
Seems like leaf (end-nodes) has been freed by __tnode_free_rcu and not
by __leaf_free_rcu. This fixes the problem. Only tnode_free is now
used which checks for appropriate node type. free_leaf can be removed.
Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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If the change of personality does not lead to change of exec domain,
__set_personality() returned without releasing the module reference
acquired by lookup_exec_domain().
This patch was already included in Linus' tree.
Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[CPUFREQ] Fix the p4-clockmod N60 errata workaround.
Fix the code to disable freqs less than 2GHz in N60 errata.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Wrong error path in dup_fd() - it should return NULL on error,
not an address of already freed memory :/
Triggered by OpenVZ stress test suite.
What is interesting is that it was causing different oopses in RCU like
below:
Call Trace:
[<c013492c>] rcu_do_batch+0x2c/0x80
[<c0134bdd>] rcu_process_callbacks+0x3d/0x70
[<c0126cf3>] tasklet_action+0x73/0xe0
[<c01269aa>] __do_softirq+0x10a/0x130
[<c01058ff>] do_softirq+0x4f/0x60
=======================
[<c0113817>] smp_apic_timer_interrupt+0x77/0x110
[<c0103b54>] apic_timer_interrupt+0x1c/0x24
Code: Bad EIP value.
<0>Kernel panic - not syncing: Fatal exception in interrupt
Signed-Off-By: Pavel Emelianov <xemul@sw.ru>
Signed-Off-By: Dmitry Mishin <dim@openvz.org>
Signed-Off-By: Kirill Korotaev <dev@openvz.org>
Signed-Off-By: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: {ip,nf}_conntrack_netlink: fix expectation notifier unregistration
This patch fixes expectation notifier unregistration on module unload to
use ip_conntrack_expect_unregister_notifier(). This bug causes a soft
lockup at the first expectation created after a rmmod ; insmod of this
module.
Should go into -stable as well.
Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The isicom driver uses request_firmware()
and thus needs to select FW_LOADER.
This patch was already included in Linus' tree.
Signed-off-by: maximilian attems <maks@sternwelten.at>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[CPUFREQ] Mark longhaul driver as broken.
This seems to work for a short period of time, but when
used in conjunction with a userspace governor that changes
the frequency regularly, it's only a matter of time before
everything just locks up.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Modules: Opti9xx drivers
Fix compile errors without CONFIG_PNP.
This patch was already included in Linus' tree.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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For some time, the core pcmcia drivers seem not to think single
character prod_ids are valid, thus preventing the "cleverly" named
"D" "Link DWL-650 11Mbps WLAN Card"
Before (as in 2.6.16):
PRODID_1=""
PRODID_2="Link DWL-650 11Mbps WLAN Card"
PRODID_3="Version 01.02"
PRODID_4=""
MANFID=0156,0002
FUNCID=6
After (with the patch)
PRODID_1="D"
PRODID_2="Link DWL-650 11Mbps WLAN Card"
PRODID_3="Version 01.02"
PRODID_4=""
MANFID=0156,0002
FUNCID=6
Signed-off-by: Janos Farkas <chexum@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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PCMCIA_SPECTRUM must select FW_LOADER.
Reported by "Alexander E. Patrakov" <patrakov@ums.usu.ru>.
This patch was already included in Linus' tree.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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We used to assume that a DMA mapping request with a NULL dev was for
ISA DMA. This assumption was broken at some point. Now we explicitly
pass the detected ISA PCI device in the floppy setup.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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sbp2util_mark_command_completed takes a lock which was already taken by
sbp2scsi_complete_all_commands. This is a regression in Linux 2.6.15.
Reported by Kristian Harms at
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=187394
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When trying to deconfigure a device via usb_set_configuration(dev, 0),
2.6.16-rc kernels after 55c527187c9d78f840b284d596a0b298bc1493af oops
with "Unable to handle NULL pointer dereference at...". This is due to
an unchecked dereference of cp in the power budget part.
This patch was already included in Linus' tree.
Signed-off-by: Horst Schirmeier <horst@schirmeier.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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This patch replaces the split ISO raw_mask calculation code in the
iso_stream_init() function that computed incorrect numbers of high
speed transactions for both input and output transfers.
In the output case, it added a superfluous start-split transaction for
all maxmimum packet sizes that are a multiple of 188.
In the input case, it forgot to add complete-split transactions for all
microframes covered by the full speed transaction, and the additional
complete-split transaction needed for the case when full speed data
starts arriving near the end of a microframe.
These changes don't affect the lack of full speed bandwidth, but at
least it removes the MMF errors that the HC raised with some input
streams.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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No one should be writing a PAGE_SIZE worth of data to a normal sysfs
file, so properly terminate the buffer.
Thanks to Al Viro for pointing out my stupidity here.
CVE-2006-1055 has been assigned for this.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Don't read from free'd memory after calling netif_rx(). docopy is used as
a boolean (0 and 1) so unsigned int is sufficient.
Coverity bug #928
Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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tlclk calls register_chrdev() and permits register_chrdev() to allocate the
major, but it promptly forgets what that major was. So if there's no hardware
present you still get "telco_clock" appearing in /proc/devices and, I assume,
an oops reading /proc/devices if tlclk was a module.
Fix.
Mark, I'd suggest that that we not call register_chrdev() until _after_ we've
established that the hardware is present.
Cc: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fix bug identified by Linus Torvalds <torvalds@osdl.org>: the `out'
instruction depends upon the state of memory_data[], so we need to tell gcc
that before executing it. (The opcode, not gcc).
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=5553
Thanks to Antonio Ospite <ospite@studenti.unina.it> for testing.
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Attached patch fixes invalid pointer arithmetic in DMI code to make onboard
device discovery working again.
akpm: bug has been present since dmi_find_device() was added in 2.6.14.
Affects ipmi only (I think) - the symptoms weren't described.
akpm: changed to use pointer arithmetic rather than open-coded sizeof.
Signed-off-by: Andrey Panin <pazke@donpac.ru>
Cc: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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free_hba() sets hba[i] to NULL, the dereference afterwards results in this
crash. Setting busy_initializing to 0 actually looks unnecessary, but I'm
not entirely sure, which is why I left it in.
cciss: controller appears to be disabled
Unable to handle kernel NULL pointer dereference at virtual address 00000370
printing eip:
c1114d53
*pde = 00000000
Oops: 0002 [#1]
Modules linked in:
CPU: 0
EIP: 0060:[<c1114d53>] Not tainted VLI
EFLAGS: 00010286 (2.6.16 #1)
EIP is at cciss_init_one+0x4e9/0x4fe
eax: 00000000 ebx: c132cd60 ecx: c13154e4 edx: c27d3c00
esi: 00000000 edi: c2748800 ebp: c2536ee4 esp: c2536eb8
ds: 007b es: 007b ss: 0068
Process swapper (pid: 1, threadinfo=c2536000 task=c2535a30)
Stack: <0>00000000 00000000 00000000 c13fdba0 c2536ee8 c13159c0 c2536f38
f7c74740
c132cd60 c132cd60 ffffffed c2536ef0 c10c1d51 c2748800 c2536f04
c10c1d85
c132cd60 c2748800 c132cd8c c2536f14 c10c1db8 c2748848 00000000
c2536f28
Call Trace:
[<c10031d5>] show_stack_log_lvl+0xa8/0xb0
[<c1003305>] show_registers+0x102/0x16a
[<c10034a2>] die+0xc1/0x13c
[<c1288160>] do_page_fault+0x38a/0x525
[<c1002e9b>] error_code+0x4f/0x54
[<c10c1d51>] pci_call_probe+0xd/0x10
[<c10c1d85>] __pci_device_probe+0x31/0x43
[<c10c1db8>] pci_device_probe+0x21/0x34
[<c110a654>] driver_probe_device+0x44/0x99
[<c110a73f>] __driver_attach+0x39/0x5d
[<c1109e1c>] bus_for_each_dev+0x35/0x5a
[<c110a777>] driver_attach+0x14/0x16
[<c110a220>] bus_add_driver+0x5c/0x8f
[<c110ab22>] driver_register+0x73/0x78
[<c10c1f6d>] __pci_register_driver+0x5f/0x71
[<c13bf935>] cciss_init+0x1a/0x1c
[<c13aa718>] do_initcalls+0x4c/0x96
[<c13aa77e>] do_basic_setup+0x1c/0x1e
[<c10002b1>] init+0x35/0x118
[<c1000cf5>] kernel_thread_helper+0x5/0xb
Code: 04 b5 e0 de 40 c1 8d 50 04 8b 40 34 e8 3f b7 f9 ff 8b 04 b5 e0 de
40 c1 e8 aa f3 ff ff 89 f0 e8 e8 fa ff ff 8b 04 b5 e0 de 40 c1 <c7> 80
70 03 00 00 00 00 00 00 83 c8 ff 8d 65 f4 5b 5e 5f 5d c3
<0>Kernel panic - not syncing: Attempted to kill init!
Signed-off-by: Patrick McHardy <kaber@trash.net>
Cc: <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Both R1BIO_Barrier and R1BIO_Returned are 4 !!!!
This means that barrier requests don't get returned (i.e. b_endio called)
because it looks like they already have been.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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We have noticed lockups during boot when stress testing kexec on ppc64.
Two cpus would deadlock in scheduler code trying to grab already taken
spinlocks.
The double_rq_lock code uses the address of the runqueue to order the
taking of multiple locks. This address is a per cpu variable:
if (rq1 < rq2) {
spin_lock(&rq1->lock);
spin_lock(&rq2->lock);
} else {
spin_lock(&rq2->lock);
spin_lock(&rq1->lock);
}
On the other hand, the code in wake_sleeping_dependent uses the cpu id
order to grab locks:
for_each_cpu_mask(i, sibling_map)
spin_lock(&cpu_rq(i)->lock);
This means we rely on the address of per cpu data increasing as cpu ids
increase. While this will be true for the generic percpu implementation it
may not be true for arch specific implementations.
One way to solve this is to always take runqueues in cpu id order. To do
this we add a cpu variable to the runqueue and check it in the
double runqueue locking functions.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fix a duplicate block device line printed after the "Block device" header
in /proc/devices.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Git patch 52dfa9a64cfb3dd01fa1ee1150d589481e54e28e
[PATCH] move rtc_interrupt() prototype to rtc.h
broke strace(1) builds. The below moves the kernel-only additions lower,
under the already provided #ifdef __KERNEL__ statement.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The code that handles bios that span table target boundaries by breaking
them up into smaller bios will not split an individual struct bio_vec into
more than two pieces. Sometimes more than that are required.
This patch adds a loop to break the second piece up into as many pieces as
are necessary.
Cc: "Abhishek Gupta" <abhishekgupt@gmail.com>
Cc: Dan Smith <danms@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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If a file is not found in v9fs_vfs_lookup, the function creates negative
dentry, but doesn't assign any dentry ops. This leaves the negative entry
in the cache (there is no d_delete to mark it for removal). If the file is
created outside of the mounted v9fs filesystem, the file shows up in the
directory with weird permissions.
This patch assigns the default v9fs dentry ops to the negative dentry.
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The console cursor can be called in atomic context. Change memory
allocation to use the GFP_ATOMIC flag in i810fb_cursor().
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The user can pass us arbitrary garbage so we should ensure the
string they give us is null terminated before we pass it on
to dev_get_by_index() et al.
Found by Solar Designer.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[XFS] Check that a page has dirty buffers before finding it acceptable for
rewrite clustering. This prevents writing excessive amounts of clean data
when doing random rewrites of a cached file.
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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As pointed out by Oliver Neukum.
Cc: Maneesh Soni <maneesh@in.ibm.com>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Doing (int < NR_CPUS) doesn't dtrt if it's negative..
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The fw_realloc_buffer routine does not handle an increase in buffer size of
more than 4k. It's not clear to me why it expects that it will only get an
extra 4k of data. The attached patch modifies fw_realloc_buffer to vmalloc
as much memory as is requested, instead of what we previously had + 4k.
I've tested this on my laptop, which would crash occaisionally on boot
without the patch. With the patch, it hasn't crashed, but I can't be
certain that this code path is exercised.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When calling sysfs_remove_dir() don't allow any further sysfs functions
to work for this kobject anymore. This fixes a nasty USB cdc-acm oops
on disconnect.
Many thanks to Bob Copeland and Paul Fulghum for taking the time to
track this down.
Cc: Bob Copeland <email@bobcopeland.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Maneesh Soni <maneesh@in.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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(CVE-2006-1242)
The problem is in ip_push_pending_frames(), which uses:
if (!df) {
__ip_select_ident(iph, &rt->u.dst, 0);
} else {
iph->id = htons(inet->id++);
}
instead of ip_select_ident().
Right now I think the code is a nonsense. Most likely, I copied it from
old ip_build_xmit(), where it was really special, we had to decide
whether to generate unique ID when generating the first (well, the last)
fragment.
In ip_push_pending_frames() it does not make sense, it should use plain
ip_select_ident() instead.
Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch addresses a number of weird behaviours observed
for the sata_mv driver, by fixing an "off by one" bug in processing
of the EDMA response queue.
Basically, sata_mv was looking in the wrong place for
command results, and this produced a lot of unpredictable behaviour.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The cx25840 module requires external firmware in order to function,
so it must select FW_LOADER, but saa7115 and saa7129 do not require it.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Forgot to take the NTSC frequency offset into account.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Interrupt handler did not properly initialize a variable on a per-port
basis, leading to incorrect behavior on ports other than port 0.
Bug caught and fixed by Mark Lord.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This address is going to be obsolete, so I should update it.
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] SB1: Check for -mno-sched-prolog if building corelis debug kernel.
[MIPS] Sibyte: Fix race in sb1250_gettimeoffset().
[MIPS] Sibyte: Fix interrupt timer off by one bug.
[MIPS] Sibyte: Fix M_SCD_TIMER_INIT and M_SCD_TIMER_CNT wrong field width.
[MIPS] Protect more of timer_interrupt() by xtime_lock.
[MIPS] Work around bad code generation for <asm/io.h>.
[MIPS] Simple patch to power off DBAU1200
[MIPS] Fix DBAu1550 software power off.
[MIPS] local_r4k_flush_cache_page fix
[MIPS] SB1: Fix interrupt disable hazard.
[MIPS] Get rid of the IP22-specific code in arclib.
Update MAINTAINERS entry for MIPS.
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The 40-bit DMA workaround recently implemented for 5714, 5715, and
5780 needs to be expanded because there may be other tg3 devices
behind the EPB Express to PCIX bridge in the 5780 class device.
For example, some 4-port card or mother board designs have 5704 behind
the 5714.
All devices behind the EPB require the 40-bit DMA workaround.
Thanks to Chris Elmquist again for reporting the problem and testing
the patch.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the AX.25 dialect chosen by the sysadmin is set to DAMA master / 3
(or DAMA slave / 2, if CONFIG_AX25_DAMA_SLAVE=n) ax25_kick() will fall
through the switch statement without calling ax25_send_iframe() or any
other function that would eventually free skbn thus leaking the packet.
Fix by restricting the sysctl inferface to allow only actually supported
AX.25 dialects.
The system administration mistake needed for this to happen is rather
unlikely, so this is an uncritical hole.
Coverity #651.
Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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VIDEO_CX88_ALSA should not be between VIDEO_CX88_DVB and
VIDEO_CX88_DVB_ALL_FRONTENDS
When cx88-alsa was added to cx88/Kconfig, it was added in between
VIDEO_CX88_DVB and VIDEO_CX88_DVB_ALL_FRONTENDS. This caused
undesireable effects to the appearance of the menu options in
menuconfig.
This fix reorders cx88-alsa and cx88-dvb in Kconfig, to match saa7134,
and restore the correct menuconfig appearance.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Fixed em28xx based system lockup, device needs to be initialized before
starting the isoc transfer otherwise the system will completly lock up.
Signed-off-by: Markus Rechberger <mrechberger@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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sys_unshare() does mmput(new_mm). This is not enough if we have
mm->core_waiters.
This patch is a temporary fix for soon to be released 2.6.16.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
[ Checked with Uli: "I'm not planning to use unshare(CLONE_VM). It's
not needed for any functionality planned so far. What we (as in Red
Hat) need unshare() for now is the filesystem side." ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>:
sb1250_gettimeoffset() simply reads the current cpu 0 timer remaining
value, however once this counter reaches 0 and the interrupt is raised,
it immediately resets and begins to count down again.
If sb1250_gettimeoffset() is called on cpu 1 via do_gettimeofday() after
the timer has reset but prior to cpu 0 processing the interrupt and
taking write_seqlock() in timer_interrupt() it will return a full value
(or close to it) causing time to jump backwards 1ms. Once cpu 0 handles
the interrupt and timer_interrupt() gets far enough along it will jump
forward 1ms.
Fix this problem by implementing mips_hpt_*() on sb1250 using a spare
timer unrelated to the existing periodic interrupt timers. It runs at
1Mhz with a full 23bit counter. This eliminated the custom
do_gettimeoffset() for sb1250 and allowed use of the generic
fixed_rate_gettimeoffset() using mips_hpt_*() and timerhi/timerlo.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>:
The timers need to be loaded with 1 less than the desired interval not
the interval itself.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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