alloc failures already get standardized OOM
messages and a dump_stack.
For the affected mallocs around these OOM messages:
Converted kzallocs with multiplies to kcalloc.
Converted kmallocs with multiplies to kmalloc_array.
Converted a kmalloc/strlen/strncpy to kstrdup.
Moved a spin_lock below a removed OOM message and
removed a now unnecessary spin_unlock.
Neatened alignment and whitespace.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+ a new spi helper function.
1) Introduce spi_sync_transfer and use it within IIO. Originally
it was envisioned that this nice little boilerplate replacement
would go through the spi tree, but Grant Likely stated he'd
prefer we take it through IIO as the example usecases were all
in IIO (and are also in this pull request). Note that given
their may have been some unresolved elements related to the
coccinelle element of the patch, that has been stripped out
and will doubtlessly follow at a later date (along with
lots of other patches for drivers elsewhere in the tree).
2) New Invensense MPU6050 driver. This is stripped down to pretty
much the basics from the original submission with the intent
to build up all the fancy bits in an incremental (and hence
reviewable fashion). It's been through a good few revisions
so nice to finally merge this.
3) Change to iio_channel_get api to simplify device tree based
mappings. The actual mappings are currently under review.
4) Build fixes for !CONFIG_IIO_TRIGGER in the st_sensors driver.
This one snuck past during review and testing but got picked
up by Randy Dunlap in a randconfig build.
5) Some max1363 cleanups and enhancements.
6) Some comment fixes to make them coherent and comprehensible.
7) Trivial build warning fix in mxs-lradc
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Merge tag 'iio-for-3.9d' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
"4th set of IIO new drivers cleanups and fixes for the 3.9 cycle
+ a new spi helper function.
1) Introduce spi_sync_transfer and use it within IIO. Originally
it was envisioned that this nice little boilerplate replacement
would go through the spi tree, but Grant Likely stated he'd
prefer we take it through IIO as the example usecases were all
in IIO (and are also in this pull request). Note that given
their may have been some unresolved elements related to the
coccinelle element of the patch, that has been stripped out
and will doubtlessly follow at a later date (along with
lots of other patches for drivers elsewhere in the tree).
2) New Invensense MPU6050 driver. This is stripped down to pretty
much the basics from the original submission with the intent
to build up all the fancy bits in an incremental (and hence
reviewable fashion). It's been through a good few revisions
so nice to finally merge this.
3) Change to iio_channel_get api to simplify device tree based
mappings. The actual mappings are currently under review.
4) Build fixes for !CONFIG_IIO_TRIGGER in the st_sensors driver.
This one snuck past during review and testing but got picked
up by Randy Dunlap in a randconfig build.
5) Some max1363 cleanups and enhancements.
6) Some comment fixes to make them coherent and comprehensible.
7) Trivial build warning fix in mxs-lradc"
Use the new spi_sync_transfer() helper function instead of open-coding it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The following warning is generated by sparse:
drivers/staging/iio/adc/mxs-lradc.c:118:47: warning: duplicate const
Remove the duplicate const.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Delete IF_DEF_LVDS check, this function is never called when it's true.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Delete IF_DEF_LVDS check, this function is never called when it's true.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Delete IF_DEF_LVDS check, this function is never called when it's true.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This function is never called when pVBInfo->IF_DEF_LVDS is true, so we
can remove checks and reduce complexity.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Delete IF_DEF_LVDS check, this function is never called when it's true.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Delete IF_DEF_LVDS check, this function is never called when it's true.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
`comedi_alloc_subdevice_minors()` currently prints a message about
running out of minor numbers board device files if it runs out of minor
device numbers. Change it to complain about running out of minor device
numbers for subdevice files as these are in a different range, not
shared with those for board device files.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
`comedi_alloc_subdevice_minor()` currently returns the allocated minor
device number on success. This is not really of any interest to the
caller (in fact the return value is not even checked), so just return 0
on success. If the caller really needs to know the allocated minor
device number it can look in `s->minor`.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If CONFIG_MTD is not set goldfish_nand fails to compile with the
following linker warnings:
drivers/built-in.o: In function `goldfish_nand_remove':
goldfish_nand.c:(.text+0x6e7d0e): undefined reference to
`mtd_device_unregister'
drivers/built-in.o: In function `goldfish_nand_erase':
goldfish_nand.c:(.text+0x6e8ba2): undefined reference to
`mtd_erase_callback'
drivers/built-in.o: In function `goldfish_nand_init_device':
goldfish_nand.c:(.text+0x6e8eba): undefined reference to
`mtd_device_parse_register'
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When building the driver, gcc emits the following warnings:
.../drivers/staging/goldfish/goldfish_nand.c:
In function 'goldfish_nand_read_oob':
goldfish_nand.c:159:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
goldfish_nand.c:159:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 4 has type 'size_t' [-Wformat]
In function 'goldfish_nand_write_oob':
goldfish_nand.c:191:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
goldfish_nand.c:191:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 4 has type 'size_t' [-Wformat]
In function 'goldfish_nand_read':
goldfish_nand.c:215:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
In function 'goldfish_nand_write':
goldfish_nand.c:239:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
-> As defined in the printk-formats use %zx for size_t variables
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The 'if (ret)' after calling comedi_pcmcia_enable() was accidentally
removed in:
Commit: 573a964882
staging: comedi: ni_daq_dio24: use comedi_pcmcia_{enable,disable}
Put if back so that dio24_auto_attach() can finish attaching to
the board after enabling the pcmcia device.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 56810a92c6 (staging: xgifb: use
XGIRegInit()) left 3cc uninitialized, and it may trigger a panic during
probe. Fix this.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The kbuild test robot reported a build error in this driver caused by:
commit: a3ac95195b
staging: comedi: comedi_pcmcia: allow drivers to use a custom conf_check()
This commit changed the comedi_pcmcia_enable() function so that it now
takes two arguments. The new argument is an optional (*conf_check)
function that is passed to pcmcia_loop_config().
This driver uses the default (*conf_check) in comedi_pcmcia.c so just
pass a NULL as the second arg.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use pcmcia_request_irq() instead of request_irq() to request the
shared irq for the PCMCIA device. This allows the PCMCIA core to
clean up the registration in pcmcia_disable_device().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the comedi_pcmcia_{enable,disable} helpers to enable/disable
the PCMCIA device.
This driver uses a local (*conf_check) to check the pcmcia_device
configuration.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allow comedi pcmcia drivers to use a custom conf_check() when calling
comedi_pcmcia_enable() to enable the pcmcia device. If a conf_check()
is not passed the internal comedi_pcmcia_conf_check() will be used.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the comedi_pcmcia_{enable,disable} helpers to enable/disable
the PCMCIA device.
This driver is not an audio device, remove CONF_AUTO_AUDIO from
the link->config_flags.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the comedi_pcmcia_{enable,disable} helpers to enable/disable
the PCMCIA device.
This driver does not use interrupts and is not an audio device, remove
CONF_ENABLE_IRQ and CONF_AUTO_AUDIO from the link->config_flags.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In comedi drivers typically *_attach_common() is used as the 'common'
part of the comedi_driver attach code for drivers that support various
bus types (ISA, PCI, etc.). This driver is specific to a USB device.
To avoid confusion when grepping, rename this function to something
more appropriate.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
git history provides a better Changelog for the driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The vmk8055_range table is a duplicate of the comedi core provided
range_unipolar5 table. Use that instead.
For aesthetic reasons, clean up the formating of the vmk8061_range
table.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If CONFIG_COMEDI_DEBUG is defined a macro is enabled to output some
printk(KERN_REBUG ...) messages. These are just added noise. Remove
it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This define is no longer used by the driver. Remove it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The comedi core can use the (*insn_bits) function to emulate the
(*insn_read) function. Remove the unnecessary (*insn_read) function.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The comedi core can use the (*insn_bits) function to emulate the
(*insn_write) function. Remove the unnecessary (*insn_read)
function.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The comedi core can use the (*insn_bits) function to emulate the
(*insn_read) function.
The digital output (*insn_bits) function properly handles the
VMK8061_MODEL to read the digital output states before returning.
Remove the unnecessary (*insn_read) function. It's also not
necessary to set the SDF_READABLE flag so remove the entire
conditional in the attach.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the 'pwm_bits' in the boardinfo to 'pwm_maxdata' so that the
calculation of s->maxdata can be removed. Also, change the type to
match the comedi_subdevice type. For aesthetic reasons, rename the
'pwm_chans' boardinfo and change its type also.
Remove the '0' values in the boardinfo.
Rename the (*insn_read) and (*insn_write) functions for the pwm
subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the 'cnt_bits' in the boardinfo to 'cnt_maxdata' so that the
calculation of s->maxdata can be removed. Also, change the type to
match the comedi_subdevice type. Add a comment about the '0' value
for DEVICE_VMK8061.
The s->maxdata should always be set for the subdevice. Move it out
of the conditional.
Rename the (*insn_read), (*insn_config_, and (*insn_write) functions
for the counter subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the SDF_GROUND flag from s->subdev_flags. This flag only has
meaning for analog subdevices.
Add the missing s->range_table for the subdevice.
Rename the (*insn_write), (*insn_bits), and (*insn_read) functions
for the digital input subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the type for the digital input 'di_chans' boardinfo to match
the comedi_subdevice type it is set to. For aesthetic reasons, rename
the variable also.
Remove the SDF_GROUND flag from s->subdev_flags. This flag only has
meaning for analog subdevices.
Add the missing s->range_table for the subdevice.
Rename the (*insn_read) and (*insn_bits) functions for the digital
input subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the type for the analog output 'ao_chans' boardinfo to match
the comedi_subdevice type it is set to. For aesthetic reasons, rename
the variable also.
Rename the (*insn_write) and (*insn_read) functions for the analog
output subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the 'ai_bits' in the boardinfo to 'ai_maxdata' so that the
calculation of s->maxdata can be removed.
Change the types for the analog input boardinfo to match the
comedi_subdevice types they are set to.
Rename the (*insn_read) function for the analog input subdevice from
vmk80xx_ai_rinsn to vmk80xx_ai_insn_read to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The only information in the boardinfo that is used outside of the
attach of the driver is the 'model' of the device.
Remove the 'board' pointer from the private data and replace it with
the 'model' enum and just copy that information over during the attach.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make the usb_driver (*probe) simply call comedi_usb_auto_config()
and move all the (*probe) code into the (*auto_attach) function.
This allows getting rid of the static private data array since we
no longer do part of the initialization in the (*probe) and then
finish it in the (*auto_attach). We can simply kzalloc the private
data instead. The comedi core will then handle the kfree of the
data when the driver is detached.
We can also get rid of the static 'glb_mutex' since this mutex was
only used to protect the static private data array.
Change the parameters for a couple of the helper functions used
during the auto attach. Now that the comedi_device is available
we can simply pass that pointer and get the specific pointers
needed by the helper functions from it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allow the comedi usb drivers to pass a 'context' from their (*probe)
functions to the comedi core's comedi_usb_auto_config(). This 'context'
is then passed to comedi_auto_config() and then to the comedi_driver's
(*auto_attach).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The 'attached' flag in the private data is set after the comedi_driver
(*auto_attach) function has completed successfully.
The only places it's checked are in rudimentary_check(), which does
some basic sanity checks before doing any of the subdevice operations,
and vmk80xx_auto_attach(), which is the comedi_driver (*auto_attach)
function.
The (*auto_attach) function can only be called as the result of a
successfull usb_driver (*probe). Part of the probe is to locate a
free slot in the static private data array. All free slots are
initialized to '0' so the 'attached' flag will always be cleared.
Remove the unneccessary 'attached' flag in the private data.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The 'probed' variable is used in the usb driver (*probe) to detect an
unused element in the static private data arry. This variable is then
set after the usb driver has completed its (*probe) before calling
comedi_usb_auto_config(). When the comedi core does the auto config
it will call the (*auto_attach) function, vmk80xx_auto_attach(), which
then locates the correct private data in the static array by checking
to see if it has been 'probed' and that the 'intf' variable matches
the usb_interface pointer for the usb device.
Now that the private data is clean after failed usb probes and disconnects
we don't have to worry about have a garbage 'intf' value in the private
data that might match.
Remove the 'probed' flag from the private data and just use the 'intf'
pointer to detect the match.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently the private data used in this driver is stored in a static
array. During the usb (*probe) and empty location is found in this
array for use by the usb device. Some initialization of the private
data is then done before comedi_usb_auto_config() is called to allow
the comedi core to attach its comedi_device to the usb device.
The (*probe) can fail for various reasons. If it does, make sure that
the private data is clean before returning an error.
The usb (*disconnect) simply calls comedi_usb_auto_unconfig() to
allow the comedi core to disconnect its comedi_device from the usb
device. Since the private data points to the static array it cannot
be kfree'ed during the detach. Instead make sure it clean before
leaving the detach.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The 'count' in the private data is only used in a couple dev_info()
kernel messages. These messages are just added noise.
Remove the 'count' variable in the private data as well as the
dev_info() messages.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Factor the code that allocates the usb buffers out of vmk80xx_usb_probe().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Factor the code that detects the usb endpoints out of vmk80xx_usb_probe().
Cleanup the detection code in the new function,
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rename some of the local variables used in this driver to make the
code easier to maintain and understand.
s/udev/usb the usb_device that the comedi_driver is attached to
s/dev/devpriv the private data of the comedi_device
s/cdev/dev the comedi_device
Also, use some local variables in a couple of the functions to tidy
up the code a bit.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The struct vmk80xx_usb is actually the private data for the
comedi_device. For aesthetic reasons, rename the struct to
vmk80xx_private.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
