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path: root/drivers/staging/pi433/pi433_if.c (follow)
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2018-07-12staging: pi433: fix error return code in pi433_probe()Wei Yongjun1-0/+1
Fix to return a negative error code from the kthread_run() error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-11staging: pi433: Use preferred commenting styleSophie Matter1-10/+20
For multi-line comments, the preferred commenting style from the coding style Documentation was applied to the comments, meaning almost blank lines at the beginning and end of the comment. One changed comment includes a line over 80 characters, causing checkpatch.pl to complain, however breaking this line would not make much sense, so it is kept like it is. Signed-off-by: Sophie Matter <sophie.matter@web.de> Signed-off-by: Rico Schrage <rico.schrage@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-11staging: pi433: Comply with 80 character column limitSophie Matter1-3/+10
Lines have been split where it makes sense to shorten them in order to comply with the coding standards and fix checkpatch.pl warnings. There are still lines left that are too long, however breaking those would impair readability. Changes in v2: - now working on staging-next branch of the staging tree - the changes to the defines previously made are deleted due to readability Signed-off-by: Sophie Matter <sophie.matter@web.de> Signed-off-by: Rico Schrage <rico.schrage@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28staging: pi433: add SPDX-License-Identifier tagValentin Vidic1-0/+1
Use GPL-2.0+ based on the license text in each of the files. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28staging: pi433: fix race condition in pi433_openHugo Lefeuvre1-29/+12
The device structure contains a useless non-atomic users counter which is subject to race conditions. It has probably been created to handle the case where remove is executed while operations are still executing on open fds but this will never happen because of reference counts. Drop the users counter and move rx buffer {de,}allocation to probe() and remove(). Remove associated dead code from open() and release(). Remove related TODO entry from ioctl(). Signed-off-by: Hugo Lefeuvre <hle@owl.eu.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-17staging: pi433: fix race condition in pi433_ioctlHugo Lefeuvre1-2/+5
In the PI433_IOC_WR_TX_CFG case in pi433_ioctl, instance->tx_cfg is modified via copy_from_user(&instance->tx_cfg, argp, sizeof(struct pi433_tx_cfg))) without any kind of synchronization. In the case where two threads would execute this same command concurrently the tx_cfg field might enter in an inconsistent state. Additionally: if ioctl(PI433_IOC_WR_TX_CFG) and write() execute concurrently the tx config might be modified while it is being copied to the fifo, resulting in potential data corruption. Fix: Get instance->tx_cfg_lock before modifying tx config in the PI433_IOC_WR_TX_CFG case in pi433_ioctl. Also, do not copy data directly from user space to instance->tx_cfg. Instead use a temporary buffer allowing future checks for correctness of copied data and simpler code. Signed-off-by: Hugo Lefeuvre <hle@owl.eu.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-25staging: pi433: break long lines in pi433_if.cSimon Sandström1-4/+12
Breaks long lines in pi433_if.c, fixing checkpatch.pl warnings: "WARNING: line over 80 characters" Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23staging: pi433: cleanup tx_fifo lockingValentin Vidic1-9/+14
pi433_write requires locking due to multiple writers. After acquiring the lock check if enough free space is available in the kfifo to write the whole message. This check should prevent partial writes to tx_fifo so kfifo_reset is not needed anymore. pi433_tx_thread is the only reader so it does not require locking after kfifo_reset is removed. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Reviewed-by: Marcus Wolf <marcus.wolf@wolf-entwicklungen.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22staging: pi433: cleanup local variableValentin Vidic1-3/+4
Rename temporary local variable and add required blank line. Fixes checkpatch warning: WARNING: Missing a blank line after declarations Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19staging: pi433: fix CamelCase for GPIO functionsValentin Vidic1-5/+5
Fixes checkpatch warnings: CHECK: Avoid CamelCase: <setup_GPIOs> CHECK: Avoid CamelCase: <free_GPIOs> Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-14staging: pi433: Remove comments inside codeHariPrasath Elango1-1/+1
Remove comments inbetween code as in this case. Signed-off-by: HariPrasath Elango <hariprasath.elango@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06staging: pi433: fix CamelCase for address_filtering enumValentin Vidic1-3/+3
Fixes checkpatch warnings: CHECK: Avoid CamelCase: <filteringOff> CHECK: Avoid CamelCase: <nodeAddress> CHECK: Avoid CamelCase: <nodeOrBroadcastAddress> Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06staging: pi433: fix CamelCase for afterSyncInterruptValentin Vidic1-1/+1
Fixes checkpatch warning: CHECK: Avoid CamelCase: <afterSyncInterrupt> Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06staging: pi433: fix CamelCase for flag enumValentin Vidic1-2/+2
Fixes checkpatch warnings: CHECK: Avoid CamelCase: <modeSwitchCompleted> CHECK: Avoid CamelCase: <readyToReceive> CHECK: Avoid CamelCase: <readyToSend> CHECK: Avoid CamelCase: <pllLocked> CHECK: Avoid CamelCase: <rssiExceededThreshold> CHECK: Avoid CamelCase: <syncAddressMatch> CHECK: Avoid CamelCase: <packetSent> CHECK: Avoid CamelCase: <crcOk> CHECK: Avoid CamelCase: <batteryLow> Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06staging: pi433: fix CamelCase for packetFormat enumValentin Vidic1-4/+4
Fixes checkpatch warnings: CHECK: Avoid CamelCase: <packetFormat> CHECK: Avoid CamelCase: <packetLengthFix> CHECK: Avoid CamelCase: <packetLengthVar> Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-22staging: pi433: fix CamelCase for addressFilteringValentin Vidic1-2/+2
Fixes checkpatch warning: CHECK: Avoid CamelCase: <addressFiltering> Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-20staging: pi433: Split subtraction across 2 linesEisha Chen-yen-su1-1/+2
Split a subtraction across 2 lines in order to make these lines no longer than 80 columns. Problem found with checkpatch. Signed-off-by: Eisha Chen-yen-su <chenyensu0@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-20staging: pi433: Split some function callsEisha Chen-yen-su1-15/+30
Split some function calls on several lines in order to make these lines no longer than 80 columns. Problem found with checkpatch. Signed-off-by: Eisha Chen-yen-su <chenyensu0@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-16staging: pi433: fix CamelCase for Ohm identifiersValentin Vidic1-1/+1
Fixes checkpatch warnings: CHECK: Avoid CamelCase: <fiftyOhm> CHECK: Avoid CamelCase: <twohundretOhm> Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09staging: pi433: align function parameters with open parenthesisValentin Vidic1-5/+5
Fixes checkpatch warnings: CHECK: Alignment should match open parenthesis Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09staging: pi433: replace shifting with BIT macroValentin Vidic1-1/+1
Fixes checkpatch warnings: CHECK: Prefer using the BIT macro Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08Staging: pi433 - fix ccheckpatch issue, updated include line.Derek Robson1-1/+1
Updated the include of compat.h to fix checkpatch error Signed-off-by: Derek Robson <robsonde@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08staging: pi433: fix CamelCase for payload identifiersValentin Vidic1-1/+1
Fixes checkpatch warnings: CHECK: Avoid CamelCase: <payloadLength> CHECK: Avoid CamelCase: <payloadReady> Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-21staging: pi433: pi433_write fixed the return valueOliver Graute1-1/+1
The pi433_write function should return the number of processed bytes Reported-by: Marcin Ciupak <marcin.s.ciupak@gmail.com> Signed-off-by: Oliver Graute <oliver.graute@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19staging: pi433: replace printk calls with dev_dbgValentin Vidic1-2/+2
Fixes checkpatch warning: WARNING: printk() should include KERN_<LEVEL> facility level Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19staging: pi433: avoid logging ENOMEM messagesValentin Vidic1-3/+1
Fixes checkpatch warning: WARNING: Possible unnecessary 'out of memory' message Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19staging: pi433: replace unsigned with unsigned intValentin Vidic1-1/+1
Fixes checkpatch warning: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19staging: pi433: collapse else block after return statementValentin Vidic1-7/+7
Fixes checkpatch warning: WARNING: else is not generally useful after a break or return Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19Staging: Pi433: Bugfix for wrong argument for sizeof() in TX threadMarcus Wolf1-7/+6
sizeof(array) != sizeof(pointer to array) Fixes: "staging: pi433: reduce stack size in tx thread" Fixes: 62f39d49d168 ("staging: pi433: reduce stack size in tx thread") Signed-off-by: Marcus Wolf <linux@wolf-entwicklungen.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19staging: pi433: remove multiple blank linesValentin Vidic1-11/+0
Fixes checkpatch warning for multiple blank lines in source. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: remove comparison with trueValentin Vidic1-1/+1
Fixes checkpatch warning for error prone comparison. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: remove comparison with falseValentin Vidic1-1/+1
Fixes checkpatch warning for error prone comparison. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: add blank line after functionValentin Vidic1-0/+1
Fixes checkpatch warning for blank line after function/struct/union/enum declarations. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: rewrite comparison with NULLValentin Vidic1-2/+2
Fixes checkpatch warning for comparing value with NULL. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: remove return from a void functionValentin Vidic1-1/+0
Fixes checkpatch warning for void function return statements. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: remove spaces before tabsValentin Vidic1-1/+1
Fixes checkpatch warning for hidden spaces before tabs. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: move trailing statements to next lineValentin Vidic1-14/+31
Fixes checkpatch error for trailing if statements. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: use tabs for code indentValentin Vidic1-4/+4
Fixes checkpatch error for whitespace idents. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: use consistent brace styleValentin Vidic1-88/+41
Fixes checkpatch error for open/close braces. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: remove space inside parenthesisValentin Vidic1-17/+17
Fixes checkpatch error for prohibited spaces. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: add space around operatorsValentin Vidic1-5/+4
Fixes checkpatch error for missing spaces. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: add space after commaValentin Vidic1-2/+2
Fixes checkpatch error for missing spaces. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-13staging: pi433: add space before open parenthesisValentin Vidic1-2/+2
Fixes checkpatch error for missing spaces. Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-08staging: pi433: pi433_if.c remove SET_CHECKED macroNguyen Phan Quang Minh1-54/+139
The macro calls its argument -a function- twice, makes the calling function return prematurely -skipping resource cleanup code- and hurts understandability. Signed-off-by: Nguyen Phan Quang Minh <minhnpq16@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: pi433: Remove SET_CHECKED usage from pi433_probeSimon Sandström1-7/+21
SET_CHECKED returns from the function on failure and in pi433_probe it is necessary to free the GPIOs and the device on failure. Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: pi433: Combine all rf69_set_amplifier_x()Simon Sandström1-3/+3
Replaces the functions rf69_set_amplifier_1, _2, _3 with two functions: rf69_enable_amplifier(dev, amp_mask) and rf69_disable_amplifier(dev, amp_mask). Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: pi433: Remove enum data_modeSimon Sandström1-1/+1
Call rf69_set_data_mode with DATAMODUL_MODE value directly. Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: pi433: Split rf69_set_sync_enabled into two functionsSimon Sandström1-2/+19
Splits rf69_set_sync_enabled(dev, enabled) into rf69_enable_sync(dev) and rf69_disable_sync(dev). Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: pi433: Split rf69_set_crc_enabled into two functionsSimon Sandström1-2/+20
Splits rf69_set_crc_enabled(dev, enabled) into rf69_enable_crc(dev) and rf69_disable_crc(dev). Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: pi433: Rename enum modShaping in rf69_enum.hSimon Sandström1-1/+1
Renames enum modShaping and its values to get rid of checkpatch.pl warnings: "Avoid CamelCase: <modShaping>". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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