iio:max1027: Use iio_trigger_validate_own_device() helper
Use the new iio_trigger_validate_own_device() to verify that the trigger
can only be attached to the matching IIO device rather than using a custom
variant.
While the implementation of iio_trigger_validate_own_device() and the
custom variant and are not identical their behaviour is.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:mma8452: Use new iio_trigger_validate_own_device() helper
Use the new iio_trigger_validate_own_device() to verify that the trigger
can only be attached to the matching IIO device rather than using a custom
variant.
While the implementation of iio_trigger_validate_own_device() and the
custom variant and are not identical their behaviour is.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:trigger: Add helper function to verify that a trigger belongs to the same device
Some triggers can only be attached to the IIO device that corresponds to
the same physical device. Currently each driver that requires this
implements its own trigger validation function.
Introduce a new helper function called iio_trigger_validate_own_device()
that can be used to do this check. Having a common implementation avoids
code duplication and unnecessary boiler-plate code.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Markus Elfring [Fri, 23 Sep 2016 20:30:32 +0000 (22:30 +0200)]
iio: Use kmalloc_array() in iio_scan_mask_set()
A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
When help ('?') option is passed to the command, the help text
printed but not from '?' switch case of getopt_long() but as a
invalid argument as below. Fix this by adding '?' to opt_String
of getopt_long().
root@am437x-evm:~# ./iio_generic_buffer -?
./iio_generic_buffer: invalid option -- '?'
Usage: generic_buffer [options]...
Capture, convert and output data from IIO device buffer
-a Auto-activate all available channels
...
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The -Wempty-body gcc warning triggers in the newly added zpa2326 driver:
drivers/iio/pressure/zpa2326.c: In function 'zpa2326_dequeue_pressure':
drivers/iio/pressure/zpa2326.c:578:3: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
The use of an empty statement behind 'if (...)' is harmless here, but
it shows that the dev_dbg() macro is not used correctly: when the "DEBUG"
macro is not set, dev_dbg() already defaults to a no-operation, though
one that lets the compiler know that the arguments are used, and lets
it check the format string.
The newly added __sca3000_get_base_freq function handles all valid
modes of the SCA3000_REG_ADDR_MODE register, but gcc notices
that any other value (i.e. 0x00) causes the base_freq variable to
not get initialized:
drivers/staging/iio/accel/sca3000_core.c: In function 'sca3000_write_raw':
drivers/staging/iio/accel/sca3000_core.c:527:23: error: 'base_freq' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This adds explicit error handling for unexpected register values,
to ensure this cannot happen.
staging: ks7010: Remove unnecessary variable used to store return value
This patch removes an unnecessary variable used to store return values
in order to reduce memory usage.
Done using coccinelle:
@@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
return
- ret
+ C
;
Remove 'x=a;' from a consecutive double assignment of the form 'x=a; x=b;'.
Issue detected by the semantic patch found here:
https://github.com/coccinelle/coccinellery/blob/master/write2/write2.cocci
staging: xgifb: Remove unused variable and if statement
Setting the variable 'refresh_rate = 60;' has no use to the rest of the
function. Hence the if statement setting it and the variable itself can be
removed. This was detected using the following Coccinelle semantic patch:
@@
type T;
identifier i;
constant C;
@@
(
extern T i;
|
- T i;
<+... when != i
- i = C;
...+>
)
staging: greybus: arche-platform: compress return logic into one line
Modify return statement to use the value being returned directly instead of
assigning it first to 'ret' and returning this variable. Coccinelle semantic
patch used:
@@
expression e;
local idexpression ret;
@@
-ret =
+return
e;
-return ret;
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Christian Gromm [Wed, 21 Sep 2016 12:49:09 +0000 (14:49 +0200)]
staging: most: clean up configuration strings
This patch adds the strings 'rx', 'tx' and 'isoc' to the list of accepted
identifiers when setting up a channel configuration. To keep consistency it
removes the prefix "dir_" from strings returned by the attributes
set_direction and available_directions and it removes the suffix "_avp"
from the string "isoc_avp" returned by the attributes set_datatype and
available_datatypes.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Christian Gromm [Wed, 21 Sep 2016 12:49:05 +0000 (14:49 +0200)]
staging: most: make function most_submit_mbo return void
Function most_submit_mbo() causes an exception only if either the pointer
mbo or mbo->context equals NULL. From the underlying architecture's point
of view both cases must _not_ come true and would happen only, if something
has tampered with the pointers. This would render runtime code unable to
recover anyway. So, instead trying to hide that things are already
critically out of control we're better off with a WARN_ON() assertion.
This patch replaces the return type of the function most_submit_mbo() with
'void' and adds a WARN_ONCE() assertion. Additionally, code calling the
function is adapted accordingly.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Being over zealous in removing unused EXPORT_SYMBOLs the function
lustre_swab_lov_mds_md exports were removed. They need to be
exported so this patch restores those EXPORT_SYMBOLS. Same
mistake was done when porting to the upstream client.
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: http://review.whamcloud.com/14545
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6486 Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: rts5208: Put constant on right side of comparison
Replaces position of constant from left to right side of a comparison.
Additionally, modifies logical continuations to be on the previous line and
fixes alignment to match open parenthesis. Issues found by checkpatch.
Instead of storing the return value into a variable and then returning it, we
can club the two into a single return statement. This change was made using
the following semantic patch by Coccinelle:
staging: media: cxd2099: replace printk with dev_info
Use dev_info() instead of printk(). Majority of the conversion was done
previously on this commit: 011b2aa [media] staging/media: Use dev_ printks in cxd2099/cxd2099.[ch]
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: media: bcm2048: Merge assignment with return
Instead of storing the return value into a variable and then returning it, we
can club the two into a single return statement. This change was made using
the following semantic patch by Coccinelle:
staging: media: davinci_vpfe: Merge assignment with return
Instead of storing the return value into a variable and then returning it, we
can club the two into a single return statement. This change was made using
the following semantic patch by Coccinelle:
staging: ks7010: Remove unnecessary variable used to store return value
This patch removes an unnecessary variable used to store return values in order
to reduce memory usage.
Done using coccinelle:
@@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
return
- ret
+ C
;
Staging: octeon: Add missing of_node_put after calling of_parse_phandle.
of_node_put needs to be called when the device node which is got
from of_parse_phandle is no longer used.
This patch is found by below coccinelle script:
@@
expression e,e1,e2;
@@
*e = of_parse_phandle(...)
... when != of_node_put(e)
when != true e == NULL
when != e2 = e
e = e1
Brian Masney [Tue, 20 Sep 2016 09:38:56 +0000 (05:38 -0400)]
staging: iio: isl29018: remove the FSF's mailing address
Address warning from checkpatch:
CHECK: Do not include the paragraph about writing to the Free Software
Foundation's mailing address from the sample GPL notice. The FSF has
changed addresses in the past, and may do so again. Linux already
includes a copy of the GPL.
Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: iio: meter: ade7754: Match alignment with open parenthesis
Reorganize the parameters to improve the readability of the code in
two manners:
- parameters of distinctive variable types on different lines
- parameters of similar variable types on the same line
Also, take advantage of the horizontal space available and place
all the parameters on a single line.
staging: iio: meter: ade7758_ring: Match alignment with open parenthesis
Organize the parameters on a single line to improve the readability of
the code. Also, indent the line to match alignment with the open
parenthesis. Ensure that the modifications do not break the rule
of 80 characters per line.
Instead of storing the return value of a function call into a variable and
then returning it, we can club the two into a single return statement. This
change was made using the following semantic patch by Coccinelle:
Some type conversions like casting a pointer to a pointer of same type,
casting to the original type using addressof(&) operator etc. are not
needed. Therefore, remove them. Done using coccinelle:
@@
type t;
t *p;
t a;
@@
(
- (t)(a)
+ a
|
- (t *)(p)
+ p
|
- (t *)(&a)
+ &a
)
projects / linux-beck.git / log