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path: root/drivers/staging/rtl8712/usb_intf.c
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2021-08-12staging: rtl8712: get rid of flush_scheduled_workPavel Skripkin
commit 9be550ee43919b070bcd77f9228bdbbbc073245b upstream. This patch is preparation for following patch for error handling refactoring. flush_scheduled_work() takes (wq_completion)events lock and it can lead to deadlock when r871xu_dev_remove() is called from workqueue. To avoid deadlock sutiation we can change flush_scheduled_work() call to flush_work() call for all possibly scheduled works in this driver, since next patch adds device_release_driver() in case of fw load failure. Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/6e028b4c457eeb7156c76c6ea3cdb3cb0207c7e1.1626895918.git.paskripkin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-14staging: rtl8712: remove redundant check in r871xu_drv_initPavel Skripkin
[ Upstream commit 69d998f1e552f6e2e7b55f5058ce1ac7a72903f9 ] padapter->dvobj_init is initialized rigth before initialization check. There is no need for any branching here. Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Link: https://lore.kernel.org/r/d367e5f39f22af44c545f8710cc18fb00f10e66c.1623620630.git.paskripkin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-11staging: rtl8712: handle firmware load failureRustam Kovhaev
commit b4383c971bc5263efe2b0915ba67ebf2bf3f1ee5 upstream. when firmware fails to load we should not call unregister_netdev() this patch fixes a race condition between rtl871x_load_fw_cb() and r871xu_dev_remove() and fixes the bug reported by syzbot Reported-by: syzbot+80899a8a8efe8968cde7@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?extid=80899a8a8efe8968cde7 Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200716151324.1036204-1-rkovhaev@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-17staging: rtl8712: fix interface sanity checkJohan Hovold
commit c724f776f048538ecfdf53a52b7a522309f5c504 upstream. Make sure to use the current alternate setting when verifying the interface descriptors to avoid binding to an invalid interface. Failing to do so could cause the driver to misbehave or trigger a WARN() in usb_submit_urb() that kernels with panic_on_warn set would choke on. Fixes: 2865d42c78a9 ("staging: r8712u: Add the new driver to the mainline kernel") Cc: stable <stable@vger.kernel.org> # 2.6.37 Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191210114751.5119-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-08staging: rtl8712: init_drv_sw(): Change return valuesNishka Dasgupta
Change return values of init_drv_sw from _SUCCESS and _FAIL to 0 and -ENOMEM. Change return type from u8 to int to allow this. Add a return variable to streamline return of error codes of called functions. Modify call site to check for non-zero return value instead of _FAIL. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Link: https://lore.kernel.org/r/20190808064012.12661-7-nishkadg.linux@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-13staging: rtl8712: Fixed CamelCase lockRxFF0Filter renamed to lock_rx_ff0_filterDeepak Mishra
In process of cleaning up struct _adapter in drv_types.h, lockRxFF0Filter is renamed to to lock_rx_ff0_filter to fix a checkpatch reported issue. Signed-off-by: Deepak Mishra <linux.dkm@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-10staging: rtl8712: Fixed CamelCase for EepromAddressSizeDeepak Mishra
This patch renames CamelCase EepromAddressSizefrom to eeprom_address_size in struct _adapter and in related files drv_types.h, rtl871x_eeprom.c, usb_intf.c This was reported by checkpatch.pl Signed-off-by: Deepak Mishra <linux.dkm@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-18staging: rtl8712: rename bSuspended to suspendedHimadri Pandya
- Rename structure field bSuspended to suspended to avoid camelcase. Suggested by checkpatch. - Change type to bool as the variable is used as a boolean. Signed-off-by: Himadri Pandya <himadri18.07@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-18staging: rtl8712: rename bSurpriseRemoved to surprise_removedHimadri Pandya
- Rename structure field bSurprisedRemoved to surprised_removed to avoid camelcase. Suggested by checkpatch. - Change type to bool as the variable is used as a boolean. Signed-off-by: Himadri Pandya <himadri18.07@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-18staging: rtl8712: rename bDriverStopped to driver_stoppedHimadri Pandya
- Rename structure field bDriverStopped to driver_stopped to avoid camelcase. Suggested by checkpatch. - Change type to bool as the variable is being used as boolean. Signed-off-by: Himadri Pandya <himadri18.07@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-15staging: rtl8712u: Fix suspend and resume callbacksKai-Heng Feng
When system resume and the rtl8712u dongle didn't lose its power, it doesn't work quite right: [ 146.844241] r8712u 2-3:1.0 wlp0s4f1u3: Unable to resume ... [ 154.029573] r8712u 2-3:1.0 wlp0s4f1u3: In r8711_wx_set_scan: bDriverStopped=1 The !netif_running() check in PM callbacks aren't correct because rtl8712u doesn't support runtime suspend, so the when the PM ops get called, it's system suspend or system resume, hence we want to "stop everthing" or "resume everything". The NULL check on pnetdev is also redundant, the only place pnetdev can become NULL is the disconnect callback, which is mutually exclusive to PM callbacks. This can make rtl8712u starts working after system resume. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-15staging: rtl8712u: Remove dummy reset-resume callbackKai-Heng Feng
An USB wireless dongle uses rtl8712u stops working after system suspend/resume. When a USB device lost its power during suspend, the USB core knows the power was lost and a reset-resume or a re-probe is required. But rtl8712u provides a dummy reset-resume callback, which gets called and renders the device dead after resume. So remove the reset-resume call back, if power was lost during suspend, let the USB core unbind and probe the device to solve the issue. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-03staging: rtl8712: add SPDX identifiersMichael Straube
This satisfies a checkpatch warning and is the preferred method for notating the license. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Signed-off-by: Michael Straube <straube.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-17staging: rtl8712: Fix unbalanced braces around else statementLiam Ryan
Fix checkpath-reported unbalanced braces in the following areas 221: FILE: drivers/staging/rtl8712/hal_init.c:221: 392: FILE: drivers/staging/rtl8712/os_intfs.c:392: 363: FILE: drivers/staging/rtl8712/rtl8712_cmd.c:363: 889: FILE: drivers/staging/rtl8712/rtl8712_recv.c:889: 902: FILE: drivers/staging/rtl8712/rtl871x_cmd.c:902: 84: FILE: drivers/staging/rtl8712/rtl871x_ioctl_set.c:84: 580: FILE: drivers/staging/rtl8712/rtl871x_mlme.c:580: 593: FILE: drivers/staging/rtl8712/usb_intf.c:593: Signed-off-by: Liam Ryan <liamryandev@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-18staging: rtl8712: constify usb_device_idArvind Yadav
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. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-26staging: rtl8172: usb_intf.c: Fixed block comment coding styleGonçalo Salazar
Fixed a block comment indentation in the rtl8712 usb_intf.c file. Signed-off-by: Gonçalo Salazar <glbsalazar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-12staging: rtl8712: checkpatch cleanup: block comments using a trailing */Raphaël Beamonte
Fix checkpatch.pl warning "Block comments use a trailing */ on a separate line" on multiple files of the driver by editing the affected comments. Signed-off-by: Raphaël Beamonte <raphael.beamonte@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rtl8712: Remove exceptional & on function nameAmitoj Kaur Chawla
Remove exceptional '&' operator in front of a function name. The Coccinelle semantic patch that is used to make this change is as follows: // <smpl> @r@ identifier f; @@ f(...) { ... } @@ identifier r.f; @@ - &f + f @m@ type T; identifier f; @@ T f(...); @@ identifier m.f; @@ - &f + f // </smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20staging: rtl8712: Declare function as staticAmitoj Kaur Chawla
Declare rtl871x_intf_resume() function static since it is defined and called in this file only. This fixes the following sparse warning: warning: symbol 'rtl871x_intf_resume' was not declared. Should it be static? Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07staging: rtl8712: Improve suspend/resume functionality.Hemmo Nieminen
Cancel pending URBs during suspend operation to avoid receiving ESHUTDOWN in read/write completion callbacks while the device is suspended. Receiving ESHUTDOWN in read/write completion callbacks will cause the driver to enter a non-functioning "stopped" state from which the driver is unable to recover without reloading the module. Signed-off-by: Hemmo Nieminen <hemmo.nieminen@iki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24staging: rtl8712: spaces preferred around operandsLuis de Bethencourt
Clean up all instances of checkpatch.pl checks: CHECK: spaces preferred around that '+' (and other operands) Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24staging: rtl8712: braces should be used on all armsLuis de Bethencourt
Fix all instances of the following checkpatch.pl check: CHECK: braces {} should be used on all arms of this statement Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24staging: rtl8712: Remove boolean comparisonsLuis de Bethencourt
Boolean tests do not need explicit comparison to true or false. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24staging: rtl8712: Add device ID for Sitecom WLA2100Larry Finger
This adds the USB ID for the Sitecom WLA2100. The Windows 10 inf file was checked to verify that the addition is correct. Reported-by: Frans van de Wiel <fvdw@fvdw.eu> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Frans van de Wiel <fvdw@fvdw.eu> Cc: Stable <stable@vger.kernel.org> [All stable versions] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-12Staging: rtl8712: Use ARRAY_SIZE macroShraddha Barke
ARRAY_SIZE is more concise to use when the size of an array is divided by the size of its type Changes made using Coccinelle- @@ type T; T[] E; @@ - (sizeof(E)/sizeof(T)) + ARRAY_SIZE(E) Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-07staging: rtl8712: fix Prefer ether_addr_copy() over memcpy()Heba Aamer
This patch fixes the following checkpatch.pl warning: Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2) pahole showed that the struct used pnetdev->dev_addr is aligned to u16. Moreover mac is a simple array, pdata is a pointer that starts from an even offset. Signed-off-by: Heba Aamer <heba93aamer@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-28staging: rtl8712: remove useless printing lineHeba Aamer
This patch removes an unneeded call to printk. Signed-off-by: Heba Aamer <heba93aamer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-29staging: rtl8712: remove unused variablesSudip Mukherjee
unused variables are removed. These variables were only assigned some values and after that they were never being used. So they are safe to be removed , and it has been build tested. I left a call to r8712_read32(padapter, TCR) and r8712_read8(padapter, SDIO_HCPWM) . r8712_read32() and r8712_read8() is ultimately calling usb_read32() and usb_read8() respectively. and they are again calling r8712_usbctrl_vendorreq(). this r8712_usbctrl_vendorreq() is communicating through the usb bus and is sending and receiving the control msg. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-20staging: rtl8712: Delete explicit comparison with false and NULLTapasweni Pathak
This patch delete explicit comparison to false and NULL in files of rtl8712. Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23Staging: rtl8712 : Fix line over 80 charactersTapasweni Pathak
This patch fixes checkpatch.pl warning in files of rtl8712 WARNING : line over 80 characters Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23Staging: rtl8712: remove void function return; statementTapasweni Pathak
This patch fixes checkpatch.pl warning in files of rtl8712 WARNING : void function return statement are not generally useful Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-19staging: rtl8712: Remove useless variable 'fw_found'Thomas Vegas
The net device only exists when firmware is loaded successfully. Firmware presence variable is only used through r871xu_dev_remove() and this function already checks for net device existence. Signed-off-by: Thomas Vegas <thomas@grouk.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-19staging: rtl8712: Fix oops on dongle removal if firmware is not availableThomas Vegas
When firmware is not available, net device is not created. Upon disconnect, we must check for net device existence before trying to release net device private data. Signed-off-by: Thomas Vegas <thomas@grouk.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-24staging: rtl8712: usb_intf.c: Fix for possible null pointer dereferenceRickard Strandqvist
There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-09staging: r8712u: Set device type to wlanLarry Finger
The latest version of NetworkManager does not recognize the device as wireless without this change. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-17staging: rtl8712: re-use native mac_pton() helperAndy Shevchenko
There is a nice helper to parse MAC. Let's use it and remove custom implementation. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11rtl8712: replace printk with better solutionsPrzemo Firszt
Replace printk with netdev_printk helpers, dev_printk helpers or pr_err/warn/info if there is no device info available. Signed-off-by: Przemo Firszt <przemo@firszt.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-07staging: r8712u: Add new device IDLarry Finger
The ISY IWL 1000 USB WLAN stick with USB ID 050d:11f1 is a clone of the Belkin F7D1101 V1 device. Reported-by: Thomas Hartmann <hartmann@ict.tuwien.ac.at> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Thomas Hartmann <hartmann@ict.tuwien.ac.at> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-04staging: r8712u: Remove defines that are not usedLarry Finger
This driver has a number of defines, etc. that are not used. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-25Merge 3.5-rc4 into staging-nextGreg Kroah-Hartman
This picks up the staging changes made in 3.5-rc4 so that everyone can sync up properly. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-22staging: r8712u: Remove useless driver version infoLarry Finger
This driver contains version information that is outdated, has no real value in terms of the Linux update process, and tends to confuse users. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-15staging: r8712u: Add new USB IDsstaging-3.5-rc4Lubomir Schmidt
There are two new devices for this driver. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-14staging: r8712u: Remove needless test for NULLLarry Finger
In commit ee6aeff, a swatch warning was fixed by moving some code inside an if block that is executed only when the pointer padapter is not NULL. In fact, padapter can never be NULL and the corect fix should have been the removal of the test of padapter. Reported-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-09staging: rtl8712: Fix typos.Justin P. Mattock
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-07staging: r8712u: Fix Smatch warningLarry Finger
The patch 2080913e017a: "staging: r8712u: Fix regression caused by commit 8c213fa" from Feb 25, 2012, leads to the following Smatch complaint: drivers/staging/rtl8712/usb_intf.c:629 r871xu_dev_remove() warn: variable dereferenced before check 'padapter' (see line 625) The fix is to move the new statements inside the block where padapter is not NULL. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-02Staging: rtl8712/rtl8192u: move USB device ID within staging drivers.Martin Krause
It seems the USB device ID 0bda:8192 is wrongly assigned to the RTL8192SU chip and not to the RTL8191SU chip in the USB database. So this patch moves this device ID from the rtl8192u staging driver to the rtl8712 staging driver. This patch was tested with a Radicom WIFIHU embedded wireless module with a RTL8191SU chip and the USB device ID 0bda:8192. Without the patch the rtl8192u driver claims this device, but it does not work. With the patch the rtl8712 driver services this device and it works. Signed-off-by: Martin Krause <martin.krause@tqs.de> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-02Staging rtl8712: Remove double USB device IDsMartin Krause
Remove copies of the double USB device IDs: - 0bda:8172 - 0bda:8174 Signed-off-by: Martin Krause <martin.krause@tqs.de> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-29staging: r8712u: Fix regression caused by commit 8c213faLarry Finger
In commit 8c213fa "staging: r8712u: Use asynchronous firmware loading", the command to release the firmware was placed in the wrong routine. In combination with the bug introduced in commit a5ee652 "staging: r8712u: Interface-state not fully tracked", the driver attempts to upload firmware that had already been released. This bug is the source of one of the problems in https://bugs.archlinux.org/task/27996#comment89833. Tested-by: Alberto Lago Ballesteros <saniukeokusainaya@gmail.com> Tested-by: Adrian <agib@gmx.de> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-10Merge tag 'staging-3.3-rc3' into staging-nextGreg Kroah-Hartman
This was done to resolve some merge issues with the following files that had changed in both branches: drivers/staging/rtl8712/rtl871x_sta_mgt.c drivers/staging/tidspbridge/rmgr/drv_interface.c drivers/staging/zcache/zcache-main.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-09staging: r8712u: Simplify semaphoresLarry Finger
I am preparing to convert this driver from semaphore to mutex locking, The first step has been to eliminate a number of semaphores that were initialized but never used, and one whose only use was a single "up" after initialization. A total of 9 semaphores were removed in this process. One other change was to remove some inline semaphore routines that were unused. In addition, several cases had the following structure: down() if () { ... } up() The locking overhead was reduced by moving the up/down inside the if block. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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