The function does read-modify-write cycles on the card's registers, and doesn't access mutable members of the emu data structure.
I suppose this might have been a mixup due to the lock names being logically swapped.
Signed-off-by: Oswald Buddenhagen oswald.buddenhagen@gmx.de --- sound/pci/emu10k1/emumixer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c index 3ebc7c36a444..24052f17d81c 100644 --- a/sound/pci/emu10k1/emumixer.c +++ b/sound/pci/emu10k1/emumixer.c @@ -1654,7 +1654,7 @@ static int snd_emu10k1_shared_spdif_put(struct snd_kcontrol *kcontrol, sw = ucontrol->value.integer.value[0]; if (emu->card_capabilities->invert_shared_spdif) sw = !sw; - spin_lock_irqsave(&emu->reg_lock, flags); + spin_lock_irqsave(&emu->emu_lock, flags); if ( emu->card_capabilities->i2c_adc) { /* Do nothing for Audigy 2 ZS Notebook */ } else if (emu->audigy) { @@ -1675,7 +1675,7 @@ static int snd_emu10k1_shared_spdif_put(struct snd_kcontrol *kcontrol, reg |= val; outl(reg | val, emu->port + HCFG); } - spin_unlock_irqrestore(&emu->reg_lock, flags); + spin_unlock_irqrestore(&emu->emu_lock, flags); return change; }