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spa: libcamera: source: fix stop sequence

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Currently it is possible for the request completion handler (`impl::requestComplete`)
to observe `impl::source.fd` while it is being modified in `impl::stop()`.

Fix that by closing the eventfd after the camera has been stopped.

Fixes: 3e28f3e859 ("spa: libcamera: source: rework startup sequence")
(cherry picked from commit 848ac24490)
This commit is contained in:
Barnabás Pőcze 2026-02-24 14:34:11 +01:00 • committed by Robert Mader
parent 700cea78db
commit 87d1206fb8
1 changed files with 3 additions and 3 deletions
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6
spa/plugins/libcamera/libcamera-source.cpp
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@ -184,9 +184,6 @@ struct impl {
0, nullptr, 0, this
);
if (source.fd >= 0)
spa_system_close(system, std::exchange(source.fd, -1));
camera->requestCompleted.disconnect(this, &impl::requestComplete);
if (int res = camera->stop(); res < 0) {
@ -194,6 +191,9 @@ struct impl {
camera->id().c_str(), spa_strerror(res));
}
if (source.fd >= 0)
spa_system_close(system, std::exchange(source.fd, -1));
completed_requests_rb = SPA_RINGBUFFER_INIT();
active = false;