mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-11-08 18:57:22 +00:00
dcca9b6064
There are many open-code to manage the same pattern for refcount + wakeup sync at closing. Let's provide the common helper functions to replace the open-code. - The recount is kept in struct snd_refcount, where it's initialized by snd_refcount_init(). - The user can simply reference or unreference via snd_refcount_get() and snd_refcount_put() functions - The user can wait for the all usages gone by snd_refcount_sync() Note that here we use atomic_t instead of refcount_t since the current users allow reusing the refcount after sync again. The design of refcount_t prevents exactly this behavior, so it doesn't fit. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20260610154538.51076-2-tiwai@suse.de
200 lines
4.7 KiB
200 lines
4.7 KiB