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Since videobuf_waiton is called with intr=1, it can return -EINTR and therefore
err may be non-zero. This happens when the system goes into the standby state.
Without the BUG() occurring, there's no problem with standby mode while DVB
is being used.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
kernel-sync:
Original patch description from the patch by Rafael J. Wysocki <rjw@sisk.pl>:
Freezer: make kernel threads nonfreezable by default
Currently, the freezer treats all tasks as freezable, except for the
kernel threads that explicitly set the PF_NOFREEZE flag for themselves.
This approach is problematic, since it requires every kernel thread to
either set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it
doesn't care for the freezing of tasks at all.
It seems better to only require the kernel threads that want to or need
to be frozen to use some freezer-related code and to remove any
freezer-related code from the other (nonfreezable) kernel threads, which
is done in this patch.
The patch causes all kernel threads to be nonfreezable by default (ie.
to have PF_NOFREEZE set by default) and introduces the set_freezable()
function that should be called by the freezable kernel threads in order
to unset PF_NOFREEZE. It also makes all of the currently freezable
kernel threads call set_freezable(), so it shouldn't cause any
(intentional) change of behaviour to appear. Additionally, it updates
documentation to describe the freezing of tasks more accurately.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
Add -include linux/version.h to the cflags. Now code can have backward
compatibility test without including compat.h first.
Linux headers included from compat.h are removed, so that code will get
the same headers when compiling in v4l-dvb as it does in the kernel.
Many drivers have compat.h moved to the end of their include list, as
this lets compat.h do things it can't do at the beginning. Such as test
of something is defined to include compat code, or to put a wrapper
around a function without changing the function's name.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
Compat.h used to have an argument, now it doesn't. There was also some code:
if (current->flags & PF_FREEZE) { refrigerator(PF_FREEZE); }
which is the same as try_to_freeze(), and so can be replaced by it.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
- INIT_WORK replaced by INIT_DELAYED_WORK
- struct work_struct replaced by struct delayed_work
- callback parameters also changed
- SLAB_KERNEL replaced by GFP_KERNEL
- linux/suspend.h replaced by linux/freezer.h
- on cpia: INIT_WORK replaced by INIT_WORK_NAR
- file->f_dentry->d_inode replaced by file->f_path.dentry->d_inode
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Andrew de Quincey <adq_dvb@lidskialf.net>
Remove buggy dvb_detach() macro and replace with unified
dvb_frontend_detach() call.
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Acked-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Andrew de Quincey <adq_dvb@lidskialf.net>
Only devices using > 1 frontend were ported; ones which did not are left
using static binding.
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Andrew de Quincey <adq_dvb@lidskialf.net>
Currently in /sys/class/dvb/dvbX.demuxY/ we have:
dev
uevent
With the patch, we have (for a PCI DVB device):
dev
device -> ../../../devices/pci0000:00/0000:00:1e.0/0000:03:0d.0
uevent
So userspace tools can (finally) work out which physical device a DVB adapter
refers to. Previously you had to kinda look through dmesg and hope that it
hadn't been dumped out of the buffer. This makes debugging a lot easier if
the system has been up for a long time!
This is done by adding an extra 'struct device *' parameter to
dvb_register_adapter(). It will work with any kind of standard
linux 'device'. Additionally, if someone has an embedded system which does
things differently, they can simply supply 'NULL' and the behaviour will be
as before - the link will simply not appear.
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Ack'd-by: Manu Abraham <manu@linuxtv.org>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>
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Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Kernel-sync from patch 3318b
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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- Lots of small changes to allow compiling with kernel 2.4.
Compilation result not tested yet.
- After this patch, .version should be removed, since its
syntax has changed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- Removed remaining trailing spaces.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- Fix bug in lgdt3302_read_status to return correct
FE_HAS_SIGNAL and FS_HAS_CARRIER status.
* msp3400.c, saa7134-cards.c, saa7134-i2c.c:
* tuner-simple.c, video-buf-dvb.c:
- Remove trailing whitespace.
Signed-off-by: Mac Michaels <wmichaels1@earthlink.net>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
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- Fix build with 2.6.13.
* cx22702.c:
- Remove unused field id that cause build problems.
Signed-Off-By: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
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Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
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- misc dvb updates.
- pinnacle 300i stuff (not working yet).
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- move more modules to new-style insmod options.
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- misc cleanups.
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- splitted some generic dvb code into the new video-buf-dvb module.
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