kernel/linux.git/drivers/mfd/viperboard.c, branch v7.1

mfd: viperboard: Drop redundant device reference

2026-03-25T12:45:18+00:00

Driver core holds a reference to the USB interface and its parent USB device while the interface is bound to a driver and there is no need to take additional references unless the structures are needed after disconnect. Drop the redundant device reference to reduce cargo culting, make it easier to spot drivers where an extra reference is needed, and reduce the risk of memory leaks when drivers fail to release it. Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260305104051.15727-1-johan@kernel.org Signed-off-by: Lee Jones

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

mfd: viperboard: Delete an error message for a failed memory allocation in vprbrd_probe()

2018-05-16T08:21:48+00:00

Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Lee Jones

mfd: Use mfd_add_hotplug_devices() helper

2014-11-25T16:18:42+00:00

Use mfd_add_hotplug_devices helper to register the subdevices. Signed-off-by: Johan Hovold Signed-off-by: Lee Jones

mfd: Constify struct mfd_cell where possible

2014-01-06T09:13:29+00:00

As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones

mfd: viperboard: Do version query in dma memory

2012-11-26T10:48:56+00:00

The query for the viperboard version was done with memory buffer on the stack but usb transfers need dma capable memory buffer. This is fixed now. Signed-off-by: Lars Poeschel Signed-off-by: Samuel Ortiz

iio: adc: Add viperboard adc driver

2012-11-20T11:21:13+00:00

This adds the mfd cell to use the adc part of the Nano River Technologies viperboard. Signed-off-by: Lars Poeschel Reviewed-by: Lars-Peter Clausen Acked-by: Jonathan Cameron Signed-off-by: Samuel Ortiz

i2c: Add viperboard i2c master driver

2012-11-20T11:21:13+00:00

This adds the mfd cell to use the i2c part of the Nano River Technologies viperboard as i2c master. Signed-off-by: Lars Poeschel Signed-off-by: Samuel Ortiz