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path: root/drivers/staging
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2024-11-07staging: gpib: Re-order the lookup tablesDave Penkler
Re-order the tables so that the bcm27xx table is used first as these devices are more popular and numerous than the older ones. This is slightly more efficient for the later pi3 and subsequent models but should not be noticable in practice for all users. Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-12-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Remove GPIO14 and GPIO15 lines in lookup tablesDave Penkler
GPIO14 and GPIO15 are not used in the current pin maps Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-11-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Remove unneeded lookup tableDave Penkler
Remove bcm2837 table as the only difference is GPIO14 and GPIO15 which are not used with the current pin maps. Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-10-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Fix KconfigDave Penkler
The NI_PCI_ISA driver also supports PCI and PCMCIA Correct typo COMPIlE_TEST Fixes: 2c9f5d8c6ece ("staging: gpib: add bus specific Kconfig dependencies") Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-9-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Use dev_xxx for messagingDave Penkler
Change pr_xxx to dev_xxx Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-8-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Add comment for mutex defineDave Penkler
Handle checkpatch CHECK message Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-7-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Fix MODULES_DESCRIPTIONDave Penkler
Use plural for adapters Fixes: ad59cf382cd5 ("staging: gpib: add module descriptions") Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-6-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Update messaging and usb_device refs in agilent_usbDave Penkler
Replace GPIB_DPRINTK with dev_dbg Replace pr_xxx with dev_xxx wherever possible Use previously initialized usb_device pointer for usb_put_dev() Remove commented out console message code. Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-5-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Update messaging and usb_device refs in ni_usbDave Penkler
Replace GPIB_DPRINTK with dev_dbg Replace pr_xxx with dev_xxx wherever possible Use previously initialized usb_device pointer for usb_get_dev() and usb_put_dev(). Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-4-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Replace custom debug with dev_dbgDave Penkler
Remove GPIB_KERNEL_DEBUG config option Remove GPIB_DEBUG reference Replace GPIB_DPRINTK with dev_dbg Change pr_alert to dev_alert Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-3-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-07staging: gpib: Fix buffer overflow in ni_usb_initDave Penkler
The writes buffer size was not taking into account the number of entries in the array which was causing random oopses. Fixes: 4e127de14fa7 ("staging: gpib: Add National Instruments USB GPIB driver") Signed-off-by: Dave Penkler <dpenkler@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241104175014.12317-2-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-05Merge 6.12-rc6 into char-misc-nextGreg Kroah-Hartman
We need the char/misc/iio fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer hal_xmitframe_enqueuePhilipp Hortmann
Remove function pointer hal_xmitframe_enqueue and use rtl8723bs_hal_xmitframe_enqueue directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/aef8fb63ed9944dde468fe1a69e5a9c700a4f627.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer mgnt_xmitPhilipp Hortmann
Remove function pointer mgnt_xmit and use rtl8723bs_mgnt_xmit directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/59988d60701a6f83a6a83b6c813e58c4484c7d3e.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer hal_xmitPhilipp Hortmann
Remove function pointer hal_xmit and use rtl8723bs_hal_xmit directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/db4f4a699847209e4a577ebfbea82b87c571e6d1.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer SetHalDefVarHandlerPhilipp Hortmann
Remove function pointer SetHalDefVarHandler and use SetHalDefVar8723BSDIO directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/7a6c87ca6b746392517275eb4f6837c0ccaabff1.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer GetHalDefVarHandlerPhilipp Hortmann
Remove function pointer GetHalDefVarHandler and use GetHalDefVar8723BSDIO directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/fc3d7390305b474e7149c087ad6e065d883e8447.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer SetHwRegHandlerWithBufPhilipp Hortmann
Remove function pointer SetHwRegHandlerWithBuf and use SetHwRegWithBuf8723B directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/e8bd652b669961e8dfe331a3a27adca47309960a.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer GetHwRegHandlerPhilipp Hortmann
Remove function pointer GetHwRegHandler and use GetHwReg8723BS directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/ace0c1f47d27d536083787a1334bf6cfafb18c03.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer SetHwRegHandlerPhilipp Hortmann
Remove function pointer SetHwRegHandler and use SetHwReg8723BS directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/5682bb8d6951e903d23c98615e2fc6bd463b0ba4.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove function pointer check_ips_statusPhilipp Hortmann
Remove function pointer check_ips_status and use CheckIPSStatus directly to increase readability. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/afcfbc2381d02a9f63a6ccc7acf4f31a24547488.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove #if 1 in function ReadChipVersion8723BPhilipp Hortmann
Remove #if 1 in function ReadChipVersion8723B as it is useless. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/637bc9cfb1188fd0112998aea5d22241e965a50e.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove #if 1 in function hal_EfuseGetCurrentSize_BTPhilipp Hortmann
Remove #if 1 in function hal_EfuseGetCurrentSize_BT to shorten code. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/9259ce43226333a4ab4ba400bbfcaa2eead3f5d1.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove #if 1 in function hal_EfusePartialWriteCheckPhilipp Hortmann
Remove #if 1 in function hal_EfusePartialWriteCheck to shorten code. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/2eea90fbdc2ef0ef5c8a224330558ccdefdfdf5b.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Replace function thread_enterPhilipp Hortmann
Replace function thread_enter with its only called function allow_signal to increase readability. Remove resulting unused local variable thread_name as well. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/6946fae41575fffff1d4718cb3a96cd53f655416.1730619982.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: vchiq_arm: Track bulk user data pointer separatelyUmang Jain
A bulk callback transfer can be initiated from two places - inside kernel interface or from user interface. However, the callback data pointer 'cb_data' is used for tracking both sets of data pointer. This commit tracks the callback data pointer from user interface (named as 'cb_userdata') separately, in the bulk transfer service callback. This is esentially done by adding a 'void __user *cb_userdata' for tracking __user pointers in vchiq_bulk and vchiq_completion_data structs. Furthermore, the 'cb_userdata' data pointer is appended to the vchiq_service's callback signature. Separating the two callback data pointers ('cb_data' and 'cb_userdata') fixes the sparse warnings around mixing userspace and kernel space pointers. As there are no additional sparse warnings left for vc04_services, drop the relevant entry from the TODO. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241023110406.885199-7-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: vchiq_core: Pass vchiq_bulk pointer to make_service_callback()Umang Jain
Pass struct vchiq_bulk pointer to make_service_callback() instead of just passing the bulk->cb_data. This is a preparatory change when we need to pass the callback data user pointer (__user) in a subsequent commit. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241023110406.885199-6-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: vchiq: Rename vchiq_completion_data 'bulk_userdata'Umang Jain
In a previous commit, struct vchiq_bulk 'userdata' got renamed to 'cb_data' since it is the data pointer passed in VCHIQ_BULK_CALLBACK_MODE's callback. Since struct vchiq_completion_data* structs also has 'bulk_userdata' for completion records, rename 'bulk_userdata' member to 'cb_data' for these structs as well. This brings consistency and clarity for the struct members. No functional change in this patch. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241023110406.885199-5-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: vchiq_core: Rename struct vchiq_bulk 'userdata'Umang Jain
Rename the struct vchiq_bulk 'userdata' member to 'cb_data' to clarify its purpose. 'cb_data' is meant to be passed to service callback function in VCHIQ_BULK_MODE_CALLBACK mode. No functional changes in this patch. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241023110406.885199-4-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: vchiq_core: Bulk waiter should not piggy back on bulk userdataUmang Jain
Currently, struct bulk_waiter is allocated for VCHIQ_BULK_MODE_BLOCKING bulk transfer and its pointer is assigned to vchiq_bulk->userdata. Avoid this kind of piggybacking and introduce a dedicate 'waiter' member in struct vchiq_bulk. The 'userdata' is meant for VCHIQ_BULK_MODE_CALLBACK mode, to pass user specified parameter to the actual callback function. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241023110406.885199-3-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: vchiq_arm: Rename a struct vchiq_bulk memberUmang Jain
Rename the struct vchiq_bulk's 'data' member to 'dma_addr' for better readability. No functional changes intended in this patch. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241023110406.885199-2-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: fieldbus: Delete unused driverPhilipp Hortmann
Sven Van Asbroeck contributed this driver in 2019. The following reasons lead to the removal: - This driver generates maintenance workload - only 11 patches during the last 3 years. Part of the patches seem to be motivated because of maintenance (for example - remove deprecated function) - Maintainer lost interest, last "Reviewed-by:" is May 2021 - no blog about usage of this driver The staging subsystem is the way for drivers into the kernel - at current speed and interest this is never going to happen. I think that fieldbus is an interesting topic. But when almost nobody cares about this driver, it does not make sense to keep it. Please consider that support will remain for years in the longterm kernels. Link: https://lore.kernel.org/linux-staging/96ae2b42-c0ce-4d9a-8933-eb874dc5589b@gmail.com/T/#u Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/20241102191436.23177-1-philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8712: Remove driver using deprecated API wextPhilipp Hortmann
This driver is in the staging area since 2010. The following reasons lead to the removal: - This driver generates maintenance workload for itself and for API wext - A MAC80211 driver was available in 2016 time frame; This driver does not compile anymore but would be a better starting point than the current driver. Here the note from the TODO file: A replacement for this driver with MAC80211 support is available at https://github.com/chunkeey/rtl8192su - no progress changing to mac80211 - Using this hardware is security wise not state of the art as WPA3 is not supported. The longterm kernels will still support this hardware for years. Find further discussions in the Link below. Link: https://lore.kernel.org/linux-staging/a02e3e0b-8a9b-47d5-87cf-2c957a474daa@gmail.com/T/#t Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Tested-by: Dominik Karol Piątkowski <dominik.karol.piatkowski@protonmail.com> Link: https://lore.kernel.org/r/20241020144933.10956-1-philipp.g.hortmann@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: change remaining printk to proper apiRodrigo Gobbi
As part of TODO file for future work, use dyn debug api for remaining printk statements. Signed-off-by: Rodrigo Gobbi <rodrigo.gobbi.7@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241029221544.112800-1-rodrigo.gobbi.7@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: vchiq_core: Remove unnecessary blank linesRohit Chavan
This commit cleans up the formatting in by removing extraneous blank lines, improving code readability without changing functionality. Signed-off-by: Rohit Chavan <roheetchavan@gmail.com> Link: https://lore.kernel.org/r/20241029063901.1857067-1-roheetchavan@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: rtl8723bs: Remove no-op netdevice_notifier()Hans de Goede
rtw_ndev_notifier_call() does not do anything other then a netdev_dbg() + always returning NOTIFY_DONE. Remove the no-op notifier. This also fixes a WARN() when unbinding + rebinding the driver which was caused by the remove() method not unregistering the notifier. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20241024181052.67031-1-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: vme_user: vme_bridge.h: Name function pointer argumentsPedro Perez
This patch names the function pointer arguments in vme_bridge consistently with the implementations. Signed-off-by: Pedro Perez <pedropz1537@gmail.com> Link: https://lore.kernel.org/r/20241023150439.4a0dbc05@hob Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: greybus: gpio: use gpiochip_get_dataRosen Penev
Instead of container_of, we can populate gpiochip_add_data 's last parameter and use gpiochip_get_data. It seems to be the standard. Signed-off-by: Rosen Penev <rosenp@gmail.com> Link: https://lore.kernel.org/r/20241021023217.319545-1-rosenp@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-04staging: gpib: Add TODO fileDominik Karol Piątkowski
Add a TODO file for the gpib driver. Signed-off-by: Dominik Karol Piątkowski <dominik.karol.piatkowski@protonmail.com> Link: https://lore.kernel.org/r/20241017190732.82176-1-dominik.karol.piatkowski@protonmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-28staging: media: drop vb2_ops_wait_prepare/finishHans Verkuil
Since commit 88785982a19d ("media: vb2: use lock if wait_prepare/finish are NULL") it is no longer needed to set the wait_prepare/finish vb2_ops callbacks as long as the lock field in vb2_queue is set. Since the vb2_ops_wait_prepare/finish callbacks already rely on that field, we can safely drop these callbacks. This simplifies the code and this is a step towards the goal of deleting these callbacks. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> # for meson/vdec Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # drivers/staging/media/tegra-video/vi.c
2024-10-24staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg()Zicheng Qu
In the ad9832_write_frequency() function, clk_get_rate() might return 0. This can lead to a division by zero when calling ad9832_calc_freqreg(). The check if (fout > (clk_get_rate(st->mclk) / 2)) does not protect against the case when fout is 0. The ad9832_write_frequency() function is called from ad9832_write(), and fout is derived from a text buffer, which can contain any value. Link: https://lore.kernel.org/all/2024100904-CVE-2024-47663-9bdc@gregkh/ Fixes: ea707584bac1 ("Staging: IIO: DDS: AD9832 / AD9835 driver") Cc: stable@vger.kernel.org Signed-off-by: Zicheng Qu <quzicheng@huawei.com> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://patch.msgid.link/20241022134354.574614-1-quzicheng@huawei.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-10-19staging: vchiq_arm: Use devm_kzalloc() for drv_mgmt allocationUmang Jain
The struct drv_mgmt 'mgmt' is currently allocated dynamically using kzalloc(). Unfortunately, it is subjected to memory leaks in the error handling paths of the probe() function. To address this issue, use device resource management helper devm_kzalloc(), to ensure cleanup after the allocation. Cc: stable@vger.kernel.org Fixes: 1c9e16b73166 ("staging: vc04_services: vchiq_arm: Split driver static and runtime data") Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241016130225.61024-3-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-19staging: vchiq_arm: Use devm_kzalloc() for vchiq_arm_state allocationUmang Jain
The struct vchiq_arm_state 'platform_state' is currently allocated dynamically using kzalloc(). Unfortunately, it is never freed and is subjected to memory leaks in the error handling paths of the probe() function. To address the issue, use device resource management helper devm_kzalloc(), to ensure cleanup after its allocation. Fixes: 71bad7f08641 ("staging: add bcm2708 vchiq driver") Cc: stable@vger.kernel.org Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20241016130225.61024-2-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-19staging: vchiq_dev: Drop userdata local pointerUmang Jain
The 'userdata' local pointer can be dropped which is set to bulk_waiter. We can directly pass the waiter->bulk_waiter pointer to vchiq_bulk_xfer_waiting(). Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241017133629.216672-7-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-19staging: vchiq_core: Simplify bulk transfer queue message functionUmang Jain
vchiq_bulk_xfer_queue_msg_killable() is a common function between various bulk transfer code paths (blocking, callback and no-callback). These code paths were simplified earlier by passing a populated struct vchiq_bulk pointer in order to avoid open-coding the parameters required to initiate a bulk transfer. Now simplify the vchiq_bulk_xfer_queue_msg_killable() in a similar way i.e. avoid open-coding the function parameters and pass the struct vchiq_bulk pointer directly, coming from the various bulk transfer code paths. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241017133629.216672-6-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-19staging: vc04_services: Simplify (no)callback bulk transfer code pathsUmang Jain
The (no)callback mode bulk transfer tends to open-code every function parameter needed to initiate the bulk transfer. Instead of doing that, simply pass a populated struct vchiq_bulk down the function chain. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241017133629.216672-5-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-19staging: vc04_services: Simplify block bulk transfer code pathsUmang Jain
Blocking bulk transfer functions tend to open-code every function parameter needed to initiate the bulk transfer. Instead of doing that, simply pass a populated struct vchiq_bulk down the function chain. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241017133629.216672-4-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-19staging: vchiq_core: Simplify bulk data preparatory functionsUmang Jain
Two functions create_pagelist() and vchiq_prepare_bulk_data() open code bulk data arguments ('size' and 'dir') in their function signatures which can easily be obtained by struct vchiq_bulk pointer. Retrieve the arguments from vchiq_bulk pointer instead and reduce the number of arguments passed in create_pagelist() and vchiq_bulk_prepare_data(). No functional changes intended in this patch. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241017133629.216672-3-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-19staging: vchiq_core: Subsume 'offset' in struct vchiq_bulkUmang Jain
Subsume offset and uoffset inside struct vchiq_bulk instead of open-coding them in vchiq_prepare_bulk_data() function. It helps in reducing function parameters and can be easily retrieved from the struct vchiq_bulk pointer for creating pagelist. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Link: https://lore.kernel.org/r/20241017133629.216672-2-umang.jain@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-19staging: gpib: Change return type and error code of fmh_gpib_get_dma_residue()Everest K.C.
fmh_gpib_get_dma_residue() returns unsigned int with -1 as error code. This error cannot be caught. Fix this by changing the return type of the function to int and returning the error code, that was captured. Also, change the data type of variable residue to int in the function fmh_gpib_dma_read(). Fixes: 8e4841a0888c ("staging: gpib: Add Frank Mori Hess FPGA PCI GPIB driver") Reported-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Everest K.C. <everestkc@everestkc.com.np> Link: https://lore.kernel.org/r/20241017220740.30370-1-everestkc@everestkc.com.np Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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