linux-toradex.git/drivers/media/dvb, branch v3.2.60

mxl111sf: Fix compile when CONFIG_DVB_USB_MXL111SF is unset

2014-04-01T23:58:47+00:00

commit 13e1b87c986100169b0695aeb26970943665eda9 upstream.

Fix the following build error:

drivers/media/usb/dvb-usb-v2/
mxl111sf-tuner.h:72:9: error: expected ‘;’, ‘,’ or ‘)’ before ‘struct’
         struct mxl111sf_tuner_config *cfg)

Signed-off-by: Dave Jones 
Signed-off-by: Michael Krufky 
Signed-off-by: Mauro Carvalho Chehab 
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings

dib8000: make 32 bits read atomic

2014-04-01T23:58:39+00:00

commit 5ac64ba12aca3bef18e61c866583155a3bbf81c4 upstream.

As the dvb-frontend kthread can be called anytime, it can race
with some get status ioctl. So, it seems better to avoid one to
race with the other while reading a 32 bits register.
I can't see any other reason for having a mutex there at I2C, except
to provide such kind of protection, as the I2C core already has a
mutex to protect I2C transfers.

Note: instead of this approach, it could eventually remove the dib8000
specific mutex for it, and either group the 4 ops into one xfer or
to manually control the I2C mutex. The main advantage of the current
approach is that the changes are smaller and more puntual.

Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Patrick Boettcher 
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings

media: dmxdev: remove dvb_ringbuffer_flush() on writer side

2013-07-27T04:34:13+00:00

commit 414abbd2cd4c2618895f02ed3a76ec6647281436 upstream.

In dvb_ringbuffer lock-less synchronizationof reader and writer threads is done
with separateread and write pointers. Sincedvb_ringbuffer_flush() modifies the
read pointer, this function must not be called from the writer thread.
This patch removes the dvb_ringbuffer_flush() calls in the dmxdev ringbuffer
write functions, this fixes Oopses "Unable to handle kernel paging request"
I could observe for the call chaindvb_demux_read ->dvb_dmxdev_buffer_read ->
dvb_ringbuffer_read_user -> __copy_to_user (the reader side of the ringbuffer).
The flush calls at the write side are not necessary anyway since ringbuffer_flush
is also called in dvb_dmxdev_buffer_read() when an error condition is set in the
ringbuffer.
This patch should also be applied to stable kernels.

Signed-off-by: Soeren Moch 
Reviewed-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab 
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings

[media] mantis: fix silly crash case

2013-05-30T13:35:15+00:00

commit e1d45ae10aea8e8a403e5d96bf5902ee670007ff upstream.

If we set mantis->fe to NULL on an error its not a good idea to then try
passing NULL to the unregister paths and oopsing really.

Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=16473

Signed-off-by: Alan Cox 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Ben Hutchings

USB: smsusb: remove __devinit* from the struct usb_device_id table

2012-09-12T02:37:09+00:00

commit d04dbd1c0ec17a13326c8f2279399c225836a79f upstream.

This structure needs to always stick around, even if CONFIG_HOTPLUG
is disabled, otherwise we can oops when trying to probe a device that
was added after the structure is thrown away.

Thanks to Fengguang Wu and Bjørn Mork for tracking this issue down.

Reported-by: Fengguang Wu 
Reported-by: Bjørn Mork 
CC: Mauro Carvalho Chehab 
CC: Michael Krufky 
CC: Paul Gortmaker 
CC: Doron Cohen 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Ben Hutchings

dvb-core: Release semaphore on error path dvb_register_device()

2012-07-25T03:11:11+00:00

commit 82163edcdfa4eb3d74516cc8e9f38dd3d039b67d upstream.

There is a missing "up_write()" here. Semaphore should be released
before returning error value.

Signed-off-by: Santosh Nayak 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Ben Hutchings

smsusb: add autodetection support for USB ID 2040:f5a0

2012-07-04T04:44:15+00:00

commit 3e1141e2ce5667301a74ca2ef396d9bd5e995f7f upstream.

Signed-off-by: Michael Krufky 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Ben Hutchings

smsusb: add autodetection support for USB ID 2040:c0a0

2012-05-30T23:43:57+00:00

commit 4d1b58b84472d1d300a66e1c5fd765b21e74ba15 upstream.

Signed-off-by: Michael Krufky 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Ben Hutchings

drxk: Does not unlock mutex if sanity check failed in scu_command()

2012-05-11T12:13:57+00:00

commit e4459e1682c107d7ee1bf102c1ba534230e9b50b upstream.

If sanity check fails in scu_command(), goto error leads to unlock of
an unheld mutex. The check should not fail in reality, but it nevertheless
worth fixing.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Ben Hutchings

mxl111sf: fix error on stream stop in mxl111sf_ep6_streaming_ctrl()

2012-04-02T16:53:02+00:00

commit 3be5bb71fbf18f83cb88b54a62a78e03e5a4f30a upstream.

Remove unnecessary register access in mxl111sf_ep6_streaming_ctrl()

This code breaks driver operation in kernel 3.3 and later, although
it works properly in 3.2  Disable register access to 0x12 for now.

Signed-off-by: Michael Krufky 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman