Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
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rongbaichuan 59d5ce0f31 sched/semaphore: Remove the return value check of nxsem_init/nxmutex_init
nxsem_init(), nxsem_destroy(), nxmutex_init() and nxmutex_destroy()
always return OK, so checking the result only leaves dead code: the
compiler cannot remove it, because these are cross-translation-unit calls
and the nxrmutex_destroy() test is duplicated into every inlined call
site.

Apply the convention already established in commit a47a36bc5b (PR #7473)
to the two definitions which still test the value and to the 54 remaining
call sites. No signature or prototype is changed.

Testing: stm32f103-minimum:nsh builds with -Os without new warnings.

Assisted-by: DeepSeek Harness:deepseek-flash
Signed-off-by: rongbaichuan <rongbaichuan1027@163.com>
2026-09-25 10:37:43 +02:00
.github build(deps): bump docker/setup-buildx-action from 4.3.0 to 4.4.1 2026-09-21 16:28:50 +08:00
arch sched/semaphore: Remove the return value check of nxsem_init/nxmutex_init 2026-09-25 10:37:43 +02:00
audio audio: limit the buffer count guard to shared ring requests 2026-08-05 07:58:53 +02:00
binfmt libs/libc/elf, binfmt: Describe the GOT by base and size, not by index. 2026-09-08 16:31:16 -03:00
boards boards/sim: Fix coding style to let the PR pass 2026-09-25 10:36:28 +02:00
cmake cmake: fix undefined function name in parse args error messages 2026-09-11 21:15:22 +08:00
crypto crypto: fix chacha constants under GCC 15. 2026-09-20 08:22:11 -03:00
Documentation arch/x86_64: Implement up_addrenv_fork() and provide POSIX fork(). 2026-09-24 18:02:36 -03:00
drivers sched/semaphore: Remove the return value check of nxsem_init/nxmutex_init 2026-09-25 10:37:43 +02:00
dummy
fs sched/semaphore: Remove the return value check of nxsem_init/nxmutex_init 2026-09-25 10:37:43 +02:00
graphics graphics/nxterm: consume SGR escape sequences 2026-08-23 10:46:02 +08:00
include sched/semaphore: Remove the return value check of nxsem_init/nxmutex_init 2026-09-25 10:37:43 +02:00
libs sched/semaphore: Remove the return value check of nxsem_init/nxmutex_init 2026-09-25 10:37:43 +02:00
mm mm/iob: fix CONFIG_NET_TIMESTAMPING typo in iob_alloc 2026-09-19 16:36:47 -03:00
net net/pkt: remove unused variable conn in append_timestamping 2026-09-19 18:32:45 -03:00
openamp cmake: Use NUTTX(_DIR/_BIN_DIR) instead CMAKE(_SRC_DIR/_BIN_DIR) 2026-08-09 11:13:08 -03:00
pass1 tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
sched sched/semaphore: Remove the return value check of nxsem_init/nxmutex_init 2026-09-25 10:37:43 +02:00
syscall fs: add chroot() syscall 2026-09-20 22:27:38 +08:00
tools riscv/erbium: Add standalone Minion emulator support. 2026-09-24 15:38:14 +08:00
video video/videomode: Fix EDID parsing and formatting of video mode dumps 2026-08-29 11:09:11 -03:00
wireless wireless/bluetooth: Validate Number Of Completed Packets event. 2026-09-25 10:35:51 +02:00
.asf.yaml
.codespell-ignore-lines arch/arm: Reserve r10 via ARCHCFLAGS and hoist the PIC module flags. 2026-07-24 23:09:08 +08:00
.codespellrc zbus: Add linker support and documentation for the zbus port 2026-09-21 08:40:14 -03:00
.editorconfig
.gitignore boards/risc-v/eic7700x: Adopt the common board layout. 2026-08-19 01:40:57 +08:00
.gitmessage
.pre-commit-config.yaml
.yamllint
AUTHORS AUTHORS: add Jorge Guzman 2026-08-25 08:43:13 -04:00
CMakeLists.txt cmake: reconfigure when .config changes 2026-09-14 18:40:45 -03:00
CONTRIBUTING.md contributing: Add requirement for 'Assisted-by' commit field 2026-07-12 09:42:28 +08:00
INVIOLABLES.md
Kconfig include/nuttx: Add link-time iterable sections infrastructure 2026-08-27 01:04:05 +08:00
LICENSE libs/libdsp: Add Matrix operations 2026-07-11 14:55:59 -03:00
Makefile !boards: enforce secure ROMFS passwd and TEA key setup 2026-07-09 22:41:11 +08:00
NOTICE
README.md ci/testing: Add MemBrowse Integration 2026-06-18 12:07:41 -03:00
ReleaseNotes

POSIX Badge License Issues Tracking Badge Contributors GitHub Build Badge Documentation Badge MemBrowse

Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).

For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.

Getting Started

First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.

Documentation

You can find the current NuttX documentation on the Documentation Page.

Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.

The old NuttX documentation is still available in the Apache wiki.

Supported Boards

NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.

Contributing

If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.

License

The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.