kernel.git/sound/usb/caiaq, branch master

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

2026-02-22T01:09:51Z

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

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

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

ALSA: caiaq: Use guard() for spin locks

2025-09-01T11:54:06Z

Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20250829150724.6886-10-tiwai@suse.de

ALSA: caiaq: Use snd_card_free_when_closed() at disconnection

2024-11-13T12:33:47Z

The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close. This patch also splits the code to the disconnect and the free phases; the former is called immediately at the USB disconnect callback while the latter is called from the card destructor. Fixes: 523f1dce3743 ("[ALSA] Add Native Instrument usb audio device support") Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20241113111042.15058-5-tiwai@suse.de

ALSA: caiaq: Fix unused variable warning

2024-08-09T07:43:56Z

The recent cleanup of caiaq driver forgot to remove the unused loop variable: sound/usb/caiaq/audio.c: In function 'snd_usb_caiaq_pcm_prepare': sound/usb/caiaq/audio.c:179:41: error: unused variable 'i' [-Werror=unused-variable] Fixes: e95b9f7f2ee0 ("ALSA: snd-usb-caiaq: use snd_pcm_rate_to_rate_bit") Reported-by: Stephen Rothwell Closes: https://lore.kernel.org/20240809112252.5af8025f@canb.auug.org.au Link: https://patch.msgid.link/20240809074254.5290-1-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: snd-usb-caiaq: use snd_pcm_rate_to_rate_bit

2024-08-08T16:32:56Z

Use snd_pcm_rate_to_rate_bit() helper provided by Alsa instead re-implementing it. This reduce code duplication and helps when changing some Alsa definition is necessary. Signed-off-by: Jerome Brunet Link: https://patch.msgid.link/20240808134857.86749-1-jbrunet@baylibre.com Signed-off-by: Takashi Iwai

ALSA: caiaq: Replace with __packed attribute

2023-10-26T07:43:07Z

Replace the old __attribute__((packed)) with the new __packed. Only cleanup, no functional changes. Link: https://lore.kernel.org/r/20231025132314.5878-7-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: caiaq: Fix -Wformat-truncation warning

2023-09-15T11:21:31Z

The filling of card->longname can be gracefully truncated, as it's only informative. Use scnprintf() and suppress the superfluous compile warning with -Wformat-truncation. Link: https://lore.kernel.org/r/20230915082802.28684-5-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: caiaq: input: Add error handling for unsupported input methods in `snd_usb_caiaq_input_init`

2023-05-04T07:50:11Z

Smatch complains that: snd_usb_caiaq_input_init() warn: missing error code 'ret' This patch adds a new case to handle the situation where the device does not support any input methods in the `snd_usb_caiaq_input_init` function. It returns an `-EINVAL` error code to indicate that no input methods are supported on the device. Fixes: 523f1dce3743 ("[ALSA] Add Native Instrument usb audio device support") Signed-off-by: Ruliang Lin Reviewed-by: Dongliang Mu Acked-by: Daniel Mack Link: https://lore.kernel.org/r/20230504065054.3309-1-u202112092@hust.edu.cn Signed-off-by: Takashi Iwai

module: remove never implemented MODULE_SUPPORTED_DEVICE

2021-03-17T20:16:18Z

MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not. Signed-off-by: Leon Romanovsky Signed-off-by: Linus Torvalds