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This callback is not actually doing anything but making it to
return an error depending on the DTV frontend command. Well,
that could break userspace for no good reason, and, if needed,
should be implemented, instead, at set_frontend() callback.
So, get rid of it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Make sure to check that we actually have an Interface Association
Descriptor before dereferencing it during probe to avoid dereferencing a
NULL-pointer.
Fixes: e0d3bafd0258 ("V4L/DVB (10954): Add cx231xx USB driver")
Cc: stable <stable@vger.kernel.org> # 2.6.30
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Don't populate const arrays on the stack, instead make them
static. Makes the object code smaller by over 5200 bytes:
Before:
text data bss dec hex filename
58259 8880 128 67267 106c3 ov519.o
After:
text data bss dec hex filename
52155 9776 128 62059 f26b ov519.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Only the nec protocol is understood, but then it doesn't pass on
the full scancode and it ignores the nec repeats its own remote
sends, so holding buttons does not work.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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"IR-receiver inside an USB DVB receiver" is not descriptive and we have
a proper name available.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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This receiver only accepts nec16 messages, I've tried many other protocols
and they're all dropped.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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The help text should be indented by at least two spaces after the
'help' separator. This is both good practice and the media_build system
for building media drivers makes this assumption.
I went through all Kconfigs under drivers/media and fixed any bad help
sections. This makes it conform to the common practice and should fix
problems with 'make menuconfig' when using media_build. This is due to
a "WARNING" message that media_build can insert in the Kconfig and that
assumes the help text is indented by at least two spaces. If not, then the
Kconfig becomes invalid and 'make menuconfig' fails.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Thomas Kaiser <linux-dvb@kaiser-linux.li>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Don't populate the array rc_nec_tab on the stack, instead make it
static const. Makes the object code smaller by over 620 bytes:
Before:
text data bss dec hex filename
49511 17040 64 66615 10437 rtl28xxu.o
After:
text data bss dec hex filename
48825 17104 64 65993 101c9 rtl28xxu.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Make these const as they are only used in a copy operation.
Done using Coccinelle.
@match disable optional_qualifier@
identifier s;
@@
static struct i2c_client s = {...};
@ref@
position p;
identifier match.s;
@@
s@p
@good1@
position ref.p;
identifier match.s,f,c;
expression e;
@@
(
e = s@p
|
e = s@p.f
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c(...,s@p.f,...)
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c(...,s@p,...)
)
@bad depends on !good1@
position ref.p;
identifier match.s;
@@
s@p
@depends on forall !bad disable optional_qualifier@
identifier match.s;
@@
static
+ const
struct i2c_client s;
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written !…
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
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Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
This issue was detected by using the Coccinelle software.
[mchehab@s-opensoure.com: merge similar patches into one]
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
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Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
[mchehab@s-opensource.com: fold several similar patches into one]
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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dvb_usb_device_description structures are only used during a copy
operation. Therefore, declare them as const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written !…
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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usbvision_probe()
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Make this const as it is only stored in a const field of a
video_device structure.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Make these const as they are only used during a copy operation.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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When RC_CORE is a loadable module, and au0828 is built-in including
the RC support, we get a link error:
drivers/media/usb/au0828/au0828-input.o: In function `au0828_get_key_au8522':
au0828-input.c:(.text+0x474): undefined reference to `ir_raw_event_store'
drivers/media/usb/au0828/au0828-input.o: In function `au0828_rc_register':
au0828-input.c:(.text+0x7c8): undefined reference to `rc_allocate_device'
au0828-input.c:(.text+0x8f8): undefined reference to `rc_register_device'
This adds an additional dependency, similar to the one for em28xx,
to ensure the broken configuration is never used.
Fixes: 2fcfd317f66c ("[media] au0828: add support for IR on HVR-950Q")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Reviewing the delta between cppcheck output of v4.9.39 and v4.9.40
stable updates, I stumbled on the new warning:
mxl111sf.c:80: (warning) Possible null pointer dereference: rbuf
Since copying state->rcvbuf into rbuf is not needed in the 'write-only'
scenario (i.e. calling mxl111sf_ctrl_msg() from mxl111sf_i2c_send_data()
or from mxl111sf_write_reg()), bypass memcpy() in this case.
Fixes: d90b336f3f65 ("[media] mxl111sf: Fix driver to use heap allocate buffers for USB messages")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Call mutex_unlock and free dev on failure.
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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If dw2102_probe() fails on dvb_usb_device_init(), then memleak occurs.
The patch adds deallocation to the error path.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Reviewed-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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dvb demod
Calling i2c_unregister_device for a demod driver destroys the frontend object.
Later it is accessed by calling dvb_unregister_frontend and
dvb_frontend_detach.
In some cases this leads to a general protection fault with this
callstack:
dvb_unregister_frontend+0x25/0x50 [dvb_core]
dvb_fini+0xdb/0x160 [cx231xx_dvb]
cx231xx_unregister_extension+0x3d/0xb0 [cx231xx]
cx231xx_dvb_unregister+0x10/0x809 [cx231xx_dvb]
SyS_delete_module+0x18a/0x240
? exit_to_usermode_loop+0x7b/0x80
entry_SYSCALL_64_fastpath+0x17/0x98
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The calculation of the left volume looks suspect, the value of
0x1f - ((val << 8) & 0x1f) is always 0x1f. The debug prior to the
assignment of value[1] prints the left volume setting using the
calculation 0x1f - (val >> 8) & 0x1f which looks correct to me.
Fix the left volume by using the correct expression as used in
the debug.
Detected by CoverityScan, CID#146140 ("Wrong operator used")
Fixes: 850d24a5a861 ("[media] em28xx-alsa: add mixer support for AC97 volume controls")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Make these const as they are only used in a copy operation.
Done using Coccinelle
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Make these const as they are only used in a copy operation or
are stored in the algo field of i2c_adapter structure, which is const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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RC_TYPE is confusing and it's just the protocol. So rename it.
Suggested-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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When an ir-spi is registered, you get this message.
rc rc0: Unspecified device as /devices/platform/soc/3f215080.spi/spi_master/spi32766/spi32766.128/rc/rc0
"Unspecified device" refers to input_name, which makes no sense for IR
TX only devices. So, rename to device_name.
Also make driver_name const char* so that no casts are needed anywhere.
Now ir-spi reports:
rc rc0: IR SPI as /devices/platform/soc/3f215080.spi/spi_master/spi32766/spi32766.128/rc/rc0
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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uvc_subdev_ops is only passed as the second argument of
v4l2_subdev_init, which is const, so uvc_subdev_ops can be
const as well.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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When adding support for metadata nodes, we'll have to keep video
devices registered until all metadata nodes are closed too. Since
this has nothing to do with stream counting, replace the nstreams
atomic variable with a reference counter.
Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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According to documentation of struct vb2_ops the .queue_setup() callback
should return an error if the number of planes parameter contains an
invalid value on input. Fix this instead of ignoring the value.
Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The size of uvc_control_mapping is user controlled leading to a
potential heap overflow in the uvc driver. This adds a check to verify
the user provided size fits within the bounds of the defined buffer
size.
Originally-from: Richard Simmons <rssimmo@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Section 9.2.6.4 of USB 2.0/3.x specification describes that
"device must be able to return the first data packet to host within
500 ms of receipt of the request. For subsequent data packet, if any,
the device must be able to return them within 500 ms".
This is to fix incorrect timeout and change it from 300 ms to 500 ms
to meet the timing specified by specification for Get Request.
Signed-off-by: Jim Lin <jilin@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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These videobuf_queue_ops structures are only passed as the second
argument to videobuf_queue_vmalloc_init, which is declared as const.
Thus the videobuf_queue_ops structures themselves can be const.
Done with the help of Coccinelle.
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct videobuf_queue_ops i@p = { ... };
@ok1@
identifier r.i;
expression e1;
position p;
@@
videobuf_queue_vmalloc_init(e1,&i@p,...)
@bad@
position p != {r.p,ok1.p};
identifier r.i;
struct videobuf_queue_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct videobuf_queue_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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These videobuf_queue_ops structures are only passed as the second
argument to videobuf_queue_vmalloc_init, which is declared as const.
Thus the videobuf_queue_ops structures themselves can be const.
Done with the help of Coccinelle.
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct videobuf_queue_ops i@p = { ... };
@ok1@
identifier r.i;
expression e1;
position p;
@@
videobuf_queue_vmalloc_init(e1,&i@p,...)
@bad@
position p != {r.p,ok1.p};
identifier r.i;
struct videobuf_queue_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct videobuf_queue_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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These videobuf_queue_ops structures are only passed as the second
argument to videobuf_queue_vmalloc_init, which is declared as const.
Thus the videobuf_queue_ops structures themselves can be const.
Done with the help of Coccinelle.
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct videobuf_queue_ops i@p = { ... };
@ok1@
identifier r.i;
expression e1;
position p;
@@
videobuf_queue_vmalloc_init(e1,&i@p,...)
@bad@
position p != {r.p,ok1.p};
identifier r.i;
struct videobuf_queue_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct videobuf_queue_ops i = { ... };
// </smpl>
In the first case, there is a second commented call to
videobuf_queue_sg_init with the structure as the second argument. If that
code will be uncommented, the const will remain correct, because the second
parameter of that function is also const.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Make these const as they are only used during a copy operation.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.
'drivers/media/usb/b2c2/flexcop-usb.c' Fix checkpatch.pl error:
ERROR: space prohibited before open square bracket '['.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This prevents potentially scary debug messages from the i2c core.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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No one cares anyway.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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While at it, change the type of the previously always-zero i2c_rc
member to int, matching the returned type from i2c_add_adapter.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Use the new CEC_CAP_DEFAULTS define in the adv, vivid, pulse8 and
rainshadow CEC drivers.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This field will be removed as it is not needed anymore.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Linux 4.13-rc4
* tag 'v4.13-rc4': (863 commits)
Linux 4.13-rc4
Fix compat_sys_sigpending breakage
ext4: fix copy paste error in ext4_swap_extents()
ext4: fix overflow caused by missing cast in ext4_resize_fs()
ext4, project: expand inode extra size if possible
ext4: cleanup ext4_expand_extra_isize_ea()
ext4: restructure ext4_expand_extra_isize
ext4: fix forgetten xattr lock protection in ext4_expand_extra_isize
ext4: make xattr inode reads faster
ext4: inplace xattr block update fails to deduplicate blocks
ext4: remove unused mode parameter
ext4: fix warning about stack corruption
ext4: fix dir_nlink behaviour
ext4: silence array overflow warning
ext4: fix SEEK_HOLE/SEEK_DATA for blocksize < pagesize
platform/x86: intel-vbtn: match power button on press rather than release
ext4: release discard bio after sending discard commands
sparc64: Fix exception handling in UltraSPARC-III memcpy.
arm64: avoid overflow in VA_START and PAGE_OFFSET
arm64: Fix potential race with hardware DBM in ptep_set_access_flags()
...
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The persistent_config option is used to make the CEC settings persistent by using
the eeprom inside the device to store this information. This was on by default, which
caused confusion since this device now behaves differently from other CEC devices
which all come up unconfigured.
Another reason for doing this now is that I hope a more standard way of selecting
persistent configuration will be created in the future. And for that to work all
CEC drivers should behave the same and come up unconfigured by default.
None of the open source CEC applications are using this CEC framework at the moment
so change this behavior before it is too late.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.10 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Signed-off-by: Nuno Henriques <nuno.amhenriques@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Declare v4l2_file_operations structures as const as they are only stored
in the fops field of video_device structures. This field is of type
const, so declare v4l2_file_operations structures with similar properties
as const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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As reported by this warning:
drivers/media/usb/pvrusb2/pvrusb2-encoder.c:263 pvr2_encoder_cmd() warn: continue to end of do { ... } while(0); loop
There's an issue at the retry logic there: the current logic is:
do {
if (need_to_retry)
continue;
some_code();
} while (0);
Well, that won't work, as continue will make it test for zero, and
abort the loop. So, change the loop to:
while (1) {
if (need_to_retry)
continue;
some_code();
break;
};
With seems to be what's actually expected there.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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