The fix is to check for ret and return -EFAULT if non-zero.
I also noticed that write() didn't return the number of bytes written.
Fixed as well.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
refactor MFE code to allow for individual streaming configuration
for each frontend
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Adds new driver, mxl111sf, to support the WinTV-Aero-M
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Reviewed-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix division by zero in drxd triggered by running "femon" before any DVB
tuning has been done (by "scandvb" or anything else).
Signed-off-by: Edward Sheldrake <ejsheldrake@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add pr_fmt.
Convert usb style logging macros to pr_<level>.
Remove now unused old usb style logging macros.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add pr_fmt and convert usb style logging macro uses to pr_<level>.
Coalesce format strings.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add pr_fmt and convert printks to pr_<level>
Remove explicit prefixes from logging messages.
One of the prefixes was defective, a copy/paste error.
Use ##__VA_ARGS__ for variadic macros.
Whitespace neatening.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This converts some messages that were emitted at
KERN_INFO to KERN_DEBUG. All of these messages
were guarded by bttv_debug tests.
Add pr_fmt.
Convert printks to pr_<level>
Convert printks without KERN_<level> to appropriate pr_<level>.
Removed embedded prefixes when pr_fmt was added.
Whitespace cleanups when around other conversions.
Macros coded with if statements should be do { if... } while (0)
so the macros can be used in other if tests.
Use ##__VA_ARGS__ for variadic macro as well.
Coalesce format strings.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add pr_fmt.
Convert ene_warn and ene_notice to pr_<level>.
Use pr_debug in __dbg macro and a little neatening.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Macros coded with if statements should be do { if... } while (0)
so the macros can be used in other if tests.
Use ##__VA_ARGS__ for variadic macro as well.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Standardize the mechanisms to emit logging messages.
A few other modules used an #include from saa7146,
convert those at the same time.
Add pr_fmt.
Convert printks to pr_<level>
Convert printks without KERN_<level> to appropriate pr_<level>.
Convert logging macros requiring multiple parentheses to normal style.
Removed embedded prefixes when pr_fmt was added.
Whitespace cleanups when around other conversions.
Use printf extension %pM to print mac address.
Coalesce format strings.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Michael Hunold <michael@mihu.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The DVB framework will try to power-down an adapter that no-one is using
any more, but this assumes that the adapter is still connected to the
machine. That's not always true for a USB adapter, so disable the sleep
operations when the adapter has been physically unplugged.
This prevents I2C write failures with error -19 from appearing
occasionally in the dmesg log.
Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There's no reason to still be holding the device list mutex for either of these
printk statements.
Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch ensures that the em28xx_init_dev() function cleans up after itself,
in the event that it fails. This isimportant because the struct em28xx will be
deallocated if em28xx_init_dev() returns an error.
[mchehab@redhat.com: Fix merge conflicts and simplify the goto labels]
Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use atomic bit operations for the em28xx_devused mask, to prevent an
unlikely race condition should two adapters be plugged in
simultaneously. The operations also clearer than explicit bit
manipulation anyway.
Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
snprintf()'s size parameter includes space for the terminating '\0' character.
Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
dtv_property_cache_init().
dtv_property_process_get().
overwritten with invalid values, leading to partially incorrect
results when calling FE_GET_PROPERTY.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Usage of these flags has been deprecated for nearly 4 years by:
commit f77bf01425
Author: Sam Ravnborg <sam@neptun.(none)>
Date: Mon Oct 15 22:25:06 2007 +0200
kbuild: introduce ccflags-y, asflags-y and ldflags-y
Moreover, these flags (at least EXTRA_CFLAGS) have been documented for command
line use. By default, gmake(1) do not override command line setting, so this is
likely to result in build failure or unexpected behavior.
Replace their usage by Kbuild's `{as,cc,ld}flags-y'.
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: linux-media@vger.kernel.org
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Hi,
The following patch adds the IR code for the missing "OK" key to the Pinnacle
PCTV HD map. This map is now used by the PCTV 290e DVB-T2 device, whose remote
control has 26 buttons.
Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Reviewed-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It seems just as necessary to free cam->vdev and cam in this error case as
in the next one.
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Both driver has been merged to v3.1-rc1, so add its authors as maintainers.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There were a several problems in this function:
1) Potential integer overflow in the comparison:
if (fio.write_len + fio.read_len > 1028) {
2) If the user gave bogus values for write_len and read_len then
returning -EINVAL is more appropriate than returning -ENOMEM.
3) wbuf was set to the address of an array and could never be NULL
so I removed the pointless NULL check.
4) The call to vfree(wbuf) was improper. That array is part of a
larger struct and isn't allocated by itself.
5) flashio() can't actually fail, but we may as well add error
handling in case this changes later.
6) In the default case where an ioctl is not implemented then
returning -ENOTTY is more appropriate than returning -EFAULT.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch implements an i2c_gate_ctrl op for the cxd2820r. Thanks to Robert
Schlabbach for identifying the register address and field to set.
The old i2c intercept code that prefixed messages with a passthrough byte has
been removed and the PCTV nanoStick T2 290e entry in em28xx-dvb has been
updated appropriately.
Tested for DVB-T2 use; I would appreciate it if somebody with DVB-C capabilities
could test it as well - from inspection I cannot see any problems.
This is patch v2. It fixes some schoolboy style errors and removes superfluous
i2c entries in cxd2820r.h.
Signed-off-by: Steve Kerrison <steve@stevekerrison.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Tested-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- Move voltage and tone to DVB-S.
- Add turbo code.
- In DVB-S2 and turbo code sections, refer to DVB-S, as both
are extensions to DVB-S.
- Add modulation to DVB-S2.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
identify a satellite receiver by its 'delivery_system' instead of
'modulation', which may overlap between different delivery systems.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The goto needs to be moved after the assignment.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tuners in general convert a high frequency carrier into an Intermediate
Frequency (IF).
Digital tuners like tda18271, xc3028, etc. generally allow changing the IF
frequency, although they generally have recommented settings for the IF.
Analog tuners, have a fixed IF frequency, that depends on the physical
characteristics of some analog components.
For digital tuners, it makes sense to have ways to configure IF,
via the tuner's configuration structure, like what's done inside the
tda18271-fe maps.
The demods need to know what IF is used by the tuner, as it will need
to convert internally from IF into baseband. Currently, the bridge driver
needs to fill a per-demod configuration struct for it, or pass it via
a dvb_attach parameter.
The tda18271 datasheet recommends to use different IF's for different
delivery system types and for different bandwidths.
The DRX-K demod also needs to know the IF frequency in order to work,
just like all other demods. However, as it accepts different delivery
systems (DVB-C and DVB-T), the IF may change if the standard and/or
bandwidth is changed.
So, the usual procedure of passing it via a config struct doesn't work.
One might try to code it as two separate IF frequencies, or even as a
table in function of the delivery system and the bandwidth, but this
will be messy.
So, it is better and simpler to just add a new callback for it and
require the tuners that can be used with MFE frontends like drx-k
to implement a new callback to return the used IF.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Makes it more straight-forward to follow stack traces if the functions
don't have generic names. Using this as a crutch while trying to better
understand the lockdep warnings I get when loading the em28xx driver.
CC: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The one in-tree videobuf2-dma-sg driver (mmp-camera) has no need for a
kernel-space mapping of the buffers; one suspects that most other drivers
would not either. The videobuf2-dma-sg module does the right thing if
buf->vaddr == NULL - it maps the buffer on demand if somebody needs it. So
let's not map the buffer at allocation time; that will save a little CPU
time and a lot of address space in the vmalloc range.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- fepriv->parameters_out isn't protected by events->mtx, so
move the call to fe->ops.get_frontend out of the locked area.
- move the assignment of e->status into the locked area.
- use direct assignment instead of memcpy.
- use mutex_lock instead of mutex_lock_interruptible, because
all code paths protected by this mutex won't block.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
the first event after an attempt to tune.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Modify it to use the data given by the user.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Delete nontrivial initialization that is immediately overwritten by the
result of an allocation function.
The semantic match that makes this change is as follows:
// <smpl>
@@
type T;
identifier i;
expression e;
@@
(
T i = \(0\|NULL\|ERR_PTR(...)\);
|
-T i = e;
+T i;
)
... when != i
i = \(kzalloc\|kcalloc\|kmalloc\)(...);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
> [34883.426065] tm6000 #0: registered device video0
> [34883.430591] Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: 0)
> [34883.437763] usbcore: registered new interface driver tm6000
> [34884.608372] BUG: unable to handle kernel NULL pointer dereference at 00000002
> [34884.615514] IP: [<f8c4ceea>] tm6000_reset+0xd7/0x11c [tm6000]
The dev->int_in USB interfaces is used by some devices for the
Remote Controller. Not all devices seem to define this interface,
so, tm6000_reset should not try to set the interface to it on
such devices.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
