| Commit message (Collapse) | Author | Age |
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All the same issues - we can't just save the pointer to the thread, we
must save the pid/uid/euid combination.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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If a process issues an URB from userspace and (starts to) terminate
before the URB comes back, we run into the issue described above. This
is because the urb saves a pointer to "current" when it is posted to the
device, but there's no guarantee that this pointer is still valid
afterwards.
In fact, there are three separate issues:
1) the pointer to "current" can become invalid, since the task could be
completely gone when the URB completion comes back from the device.
2) Even if the saved task pointer is still pointing to a valid task_struct,
task_struct->sighand could have gone meanwhile.
3) Even if the process is perfectly fine, permissions may have changed,
and we can no longer send it a signal.
So what we do instead, is to save the PID and uid's of the process, and
introduce a new kill_proc_info_as_uid() function.
Signed-off-by: Harald Welte <laforge@gnumonks.org>
[ Fixed up types and added symbol exports ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Patch from Nicolas Pitre
drivers/mfd/ucb1x00-core.c: In function 'ucb1x00_probe':
drivers/mfd/ucb1x00-core.c:482: error: 'ucb1x00_class' undeclared (first use in this function)
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The logic in ide_do_request() doesn't guarantee that both drives will be
serviced after a call. It may "forget" to service one in some
circumstances, including when one of the drive is suspended (it will
eventually fail to service the slave when the master is suspended for
example). This prevents the wakeup requests that gets queued on wakeup
from sleep from beeing serviced in some cases when 2 drives are sharing
an IDE bus.
The problem is deep enough in the way this code works (and there are
probably a few other problematic but rare corner cases) and fixing it
would require some major rethinking of the way IDE decides which channel
to service. This is not 2.6.14 material. However, in the meantime,
Bart has accepted this simple workaround that will fix the crash on
wakeup from sleep since this specific corner case is actually hitting
users to get into 2.6.14.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Patch from Ben Dooks
Initialise the driver's .owner field so that
the device driver can be referenced to the
module that owns it
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Ben Dooks
Add initialisation of .owner field so that
the device driver can be referenced to the
module that owns it.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Sascha Hauer
Fix error path in imx_startup.
Signed-off-by: Giancarlo Formicuccia <gformicuccia@atinno.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The pccardd thread has a race in it that it can shutdown in the
TASK_INTERRUPTIBLE state.
Make sure we mark ourselves runnable again as we remove ourselves from
the wait queue.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- added typedef unsigned int __nocast gfp_t;
- replaced __nocast uses for gfp flags with gfp_t - it gives exactly
the same warnings as far as sparse is concerned, doesn't change
generated code (from gcc point of view we replaced unsigned int with
typedef) and documents what's going on far better.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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We should not be warning about commands that we allow, even if they are
unknown. So move the if-root-allow check up a notch.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Add debugging code for the pcwd_pci driver.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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* Clean-up control status code (use control status defines +
change pcipcwd_clear_status)
* Clean-up boot-code (move card info to pcipcwd_show_card_info() )
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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The attached patch fixes the p9100 framebuffer so that text is viewable
(not black on black, like it was before the patch). The linux logo
displays for a very short period of time, then is replaced by a grey
box. This leads me to believe that this framebuffer would have problems
in X, but since there hasn't been a weitek driver for X in several
millennia, this isn't something that I can confirm or deny.
But this patch does get color console working on my SPARCbook 3TX.
Signed-off-by: Tom 'spot' Callaway <tcallawa@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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(struct pcmcia_socket).tune_bridge only exists if CONFIG_CARDBUS is set
but building yenta_socket without CardBus is valid.
Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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from me: change from OSL+GPL to GPL (with approval)
from Mark: Gets rid of an unneeded control bit, slightly increasing
throughput.
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This patch adds support for sil_3131 and sil_3531. Both are
identical to 3124 except that they have only one port. Bits 30 and 31
of ata_port_info->host_flags is used to encode available port numbers.
Version number is bumped to 0.22.
Edward Falk supplied all the necessary information and preliminary
patch.
Signed-off-by: Tejun Heo <htejun@gmail.com>
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This patch removes unused NR_PORTS macro and adds termination entry
to sil24_pci_tbl.
Signed-off-by: Tejun Heo <htejun@gmail.com>
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Hello, guys.
This patch implements ->tf_read callback for sil24. It didn't use to
be necessary but new ata_gen_fixed_sense now makes use of ->tf_read
callback. This patch is taken from Edward Falk's driver.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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03_sil24_add-tf-reading.patch
This patch implements proper TF register reading back and
caching and bumps up version to 0.22. This is taken from
Edward's driver.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 50 +++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 45 insertions(+), 5 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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02_sil24_remove-cmderr-clearing.patch
CMDERR register doesn't need clearing. This is from Edward's
driver.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 4 ----
1 file changed, 4 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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01_sil24_ignore-non-error-exception-irqs.patch
Do not error-finish commands for non-error exception irqs -
just ignore them. This is taken from Edward's driver.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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sil24 0.20 didn't use to perform (what seems to be) port multiplier
initialization and controller reset 0.10 driver does. This makes some
sil24 controllers malfunction. This patch adds PM initialization and
controller resetting to initilization and bumps version to 0.21.
Please refer to the following thread for more information.
http://marc.theaimsgroup.com/?l=linux-ide&m=112582819830324&w=2
http://marc.theaimsgroup.com/?l=linux-ide&m=112636045531060&w=2
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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08_sil24_add-comments-for-constants.patch
Add more comments to constants.
Signed-off-by: Edward Falk
sata_sil24.c | 16 ++++++++--------
1 files changed, 8 insertions(+), 8 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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07_sil24_fix-PORT_CTRL_STAT-constants.patch
PORT_CTRL_STAT constants were copied incorrectly from the
preview driver.
Signed-off-by: Edward Falk
sata_sil24.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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06_sil24_remove-pp-port.patch
As ap->ioaddr.cmd_addr isn't used for PORT_TF anymore, replace
pp->port w/ it as AHCI does.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 17 ++++++-----------
1 files changed, 6 insertions(+), 11 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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05_sil24_remove-PORT_TF.patch
Remove PORT_TF, as taskfile isn't located at PORT_TF.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 7 +------
1 files changed, 1 insertion(+), 6 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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04_sil24_add-error_intr-function.patch
Move error handling from sil24_host_intr into separate
function - sil24_error_intr.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 55 +++++++++++++++++++++++++++++++------------------------
1 files changed, 31 insertions(+), 24 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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03_sil24_add-pci-fault-check.patch
On entry to interrupt handler, PORT_SLOT_STAT register is read
first. Check if PCI fault or device removal has occurred by
testing the value for 0xffffffff.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 6 ++++++
1 files changed, 6 insertions(+)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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02_sil24_remove-irq-disable-on-spurious-intr.patch
If interrupt occurs on a disabled port, the driver used to
mask the port's interrupt, but we don't know if such action is
necessary yet and that's not what other drives do. So, just
do nothing and tell IRQ subsystem that it's not our interrupt.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 15 +++++----------
1 files changed, 5 insertions(+), 10 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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01_sil24_add-FIXME-comment.patch
Add FIXME comment above ata_device_add.
Signed-off-by: Tejun Heo <htejun@gmail.com>
sata_sil24.c | 1 +
1 files changed, 1 insertion(+)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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This is rewritten sil24 driver against v2.6.13-rc3.
Rewritten based on driver originally submitted by Silicon Image.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Patch to fix sata_nv handling of NVIDIA MCP51/55
Signed-off-by: Andy Currid <acurrid@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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- change "xlat" and "fill" actors in libata-scsi so
they are responsible for SCSI status and sense data
when they return 1. This allows GOOD status or a
specialized error to be set.
- yield an error for mode sense requests for saved
values [sat-r06]
- remove static inlines for ata_bad_scsiop() and
ata_bad_cdb() which are no longer used
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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- add extern ata_scsi_set_sense() to build SCSI
fixed sense data and corresponding SCSI status
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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drivers/mfd/ucb1x00-core.c:555: error: static declaration of 'ucb1x00_class' follows non-static declaration
drivers/mfd/ucb1x00.h:109: error: previous declaration of 'ucb1x00_class' was here
Since ucb1x00_class isn't used by anything, remove the extern
declaration and the symbol export.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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