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pipewire-alsa: Propagate errors from eventfd().

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Propagate the error if spa_system_eventfd_create() fails. Also copy
errno before calling spa_log_debug() in spa_system_eventfd_create() to
make sure it is not overwritten.
This commit is contained in:
Jonas Holmberg 2024-02-19 14:14:24 +01:00 • committed by Wim Taymans
parent 030768ab8e
commit c51ced42b4
3 changed files with 9 additions and 4 deletions
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5
spa/plugins/support/system.c
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@ -190,7 +190,7 @@ static int impl_timerfd_read(void *object, int fd, uint64_t *expirations)
static int impl_eventfd_create(void *object, int flags)
{
struct impl *impl = object;
int fl = 0, res;
int fl = 0, res, err;
if (flags & SPA_FD_CLOEXEC)
fl |= EFD_CLOEXEC;
if (flags & SPA_FD_NONBLOCK)
@ -198,8 +198,9 @@ static int impl_eventfd_create(void *object, int flags)
if (flags & SPA_FD_EVENT_SEMAPHORE)
fl |= EFD_SEMAPHORE;
res = eventfd(0, fl);
err = -errno; /* save errno in case it is overwritten before return */
spa_log_debug(impl->log, "%p: new fd:%d", impl, res);
return res < 0 ? -errno : res;
return res < 0 ? err : res;
}
static int impl_eventfd_write(void *object, int fd, uint64_t count)