Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ALSA: misc: Use guard() for spin locks
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250829151335.7342-20-tiwai@suse.de
+10
-15
+10
-15
sound/core/misc.c
+10
-15
sound/core/misc.c
···
127
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INIT_LIST_HEAD(&fasync->list);
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}
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-
spin_lock_irq(&snd_fasync_lock);
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-
if (*fasyncp) {
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-
kfree(fasync);
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-
fasync = *fasyncp;
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-
} else {
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-
if (!fasync) {
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-
spin_unlock_irq(&snd_fasync_lock);
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-
return 0;
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+
scoped_guard(spinlock_irq, &snd_fasync_lock) {
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+
if (*fasyncp) {
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+
kfree(fasync);
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+
fasync = *fasyncp;
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+
} else {
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+
if (!fasync)
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+
return 0;
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+
*fasyncp = fasync;
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}
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-
*fasyncp = fasync;
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+
fasync->on = on;
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}
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-
fasync->on = on;
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-
spin_unlock_irq(&snd_fasync_lock);
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return fasync_helper(fd, file, on, &fasync->fasync);
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}
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EXPORT_SYMBOL_GPL(snd_fasync_helper);
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void snd_kill_fasync(struct snd_fasync *fasync, int signal, int poll)
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{
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-
unsigned long flags;
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-
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if (!fasync || !fasync->on)
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return;
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-
spin_lock_irqsave(&snd_fasync_lock, flags);
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+
guard(spinlock_irqsave)(&snd_fasync_lock);
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fasync->signal = signal;
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fasync->poll = poll;
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list_move(&fasync->list, &snd_fasync_list);
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schedule_work(&snd_fasync_work);
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-
spin_unlock_irqrestore(&snd_fasync_lock, flags);
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}
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EXPORT_SYMBOL_GPL(snd_kill_fasync);
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