Merge tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "It's been relatively calm in this cycle from the feature POV, but
  there were lots of cleanup works in the wide-range of code for
  converting with the auto-cleanup macros like guard().

  The mostly user-visible changes are the support of a couple of new
  compress-offload API extensions, and the support of new ASoC codec /
  platform drivers as well as USB-audio quirks.

  Here we go with some highlights:

  Core:
   - Compress-offload API extension for 64bit timestamp support
   - Compress-offload API extension for OPUS codec support
   - Workaround for PCM locking issue with PREEMPT_RT and softirq
   - KCSAN warning fix for ALSA sequencer core

  ASoC:
   - Continued cleanup works for ASoC core APIs
   - Lots of cleanups and conversions of DT bindings
   - Substantial maintainance work on the Intel AVS drivers
   - Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
     FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
   - Remove support for TI WL1273 for old Nokia systems

  USB-audio:
   - Support for Tascam US-144mkII, Presonus S1824c support
   - More flexible quirk option handling
   - Fix for USB MIDI timer bug triggered by fuzzer

  Others:
   - A large series of cleanups with guard() & co macros over (non-ASoC)
     sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
   - TAS5825 HD-audio side-codec support"

* tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (454 commits)
  ALSA: usb-audio: don't hardcode gain for output channel of Presonus Studio
  ALSA: usb-audio: add the initial mix for Presonus Studio 1824c
  ALSA: doc: improved docs about quirk_flags in snd-usb-audio
  ALSA: usb-audio: make param quirk_flags change-able in runtime
  ALSA: usb-audio: improve module param quirk_flags
  ALSA: usb-audio: add two-way convert between name and bit for QUIRK_FLAG_*
  ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free
  ALSA: usb-audio: add mono main switch to Presonus S1824c
  ALSA: compress: document 'chan_map' member in snd_dec_opus
  ASoC: cs35l56: Add support for CS35L56 B2 silicon
  ASoC: cs35l56: Set fw_regs table after getting REVID
  ALSA: hda/realtek: Add quirk for HP Spectre 14t-ea100
  ASoc: tas2783A: Fix an error code in probe()
  ASoC: tlv320aic3x: Fix class-D initialization for tlv320aic3007
  ASoC: qcom: sc8280xp: use sa8775p/ subdir for QCS9100 / QCS9075
  ASoC: stm32: sai: manage context in set_sysclk callback
  ASoC: renesas: msiof: ignore 1st FSERR
  ASoC: renesas: msiof: Add note for The possibility of R/L opposite Capture
  ASoC: renesas: msiof: setup both (Playback/Capture) in the same time
  ASoC: renesas: msiof: tidyup DMAC stop timing
  ...

1 files changed, 10 insertions, 15 deletions

diff --git a/sound/core/misc.c b/sound/core/misc.c
index c2fda3bd90a0..88d9e1f9a6e9 100644
--- a/sound/core/misc.c
+++ b/sound/core/misc.c
@@ -127,35 +127,30 @@ int snd_fasync_helper(int fd, struct file *file, int on,
 		INIT_LIST_HEAD(&fasync->list);
 	}
 
-	spin_lock_irq(&snd_fasync_lock);
-	if (*fasyncp) {
-		kfree(fasync);
-		fasync = *fasyncp;
-	} else {
-		if (!fasync) {
-			spin_unlock_irq(&snd_fasync_lock);
-			return 0;
+	scoped_guard(spinlock_irq, &snd_fasync_lock) {
+		if (*fasyncp) {
+			kfree(fasync);
+			fasync = *fasyncp;
+		} else {
+			if (!fasync)
+				return 0;
+			*fasyncp = fasync;
 		}
-		*fasyncp = fasync;
+		fasync->on = on;
 	}
-	fasync->on = on;
-	spin_unlock_irq(&snd_fasync_lock);
 	return fasync_helper(fd, file, on, &fasync->fasync);
 }
 EXPORT_SYMBOL_GPL(snd_fasync_helper);
 
 void snd_kill_fasync(struct snd_fasync *fasync, int signal, int poll)
 {
-	unsigned long flags;
-
 	if (!fasync || !fasync->on)
 		return;
-	spin_lock_irqsave(&snd_fasync_lock, flags);
+	guard(spinlock_irqsave)(&snd_fasync_lock);
 	fasync->signal = signal;
 	fasync->poll = poll;
 	list_move(&fasync->list, &snd_fasync_list);
 	schedule_work(&snd_fasync_work);
-	spin_unlock_irqrestore(&snd_fasync_lock, flags);
 }
 EXPORT_SYMBOL_GPL(snd_kill_fasync);