diff options
| author | Oswald Buddenhagen <oswald.buddenhagen@gmx.de> | 2023-04-28 11:59:37 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-05-08 09:20:53 +0200 |
| commit | 71781147dabdd0b256542bb51122f376db740b0d (patch) | |
| tree | 17f1c14f99d9388213eca3a98d92cc7a4c135d5d /sound/pci/emu10k1/emuproc.c | |
| parent | 16cafbd97759ba66c79bdede4250074f026839f3 (diff) | |
ALSA: emu10k1: remove pointless locks from /proc code
emu_lock locks the card's registers, but that's necessary only for
multi-register access, incl. read-modify-write cycles.
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230428095941.1706278-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/emu10k1/emuproc.c')
| -rw-r--r-- | sound/pci/emu10k1/emuproc.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/sound/pci/emu10k1/emuproc.c b/sound/pci/emu10k1/emuproc.c index bec72dc60a41..c92253de881e 100644 --- a/sound/pci/emu10k1/emuproc.c +++ b/sound/pci/emu10k1/emuproc.c @@ -399,13 +399,10 @@ static void snd_emu_proc_io_reg_read(struct snd_info_entry *entry, { struct snd_emu10k1 *emu = entry->private_data; unsigned long value; - unsigned long flags; int i; snd_iprintf(buffer, "IO Registers:\n\n"); for(i = 0; i < 0x40; i+=4) { - spin_lock_irqsave(&emu->emu_lock, flags); value = inl(emu->port + i); - spin_unlock_irqrestore(&emu->emu_lock, flags); snd_iprintf(buffer, "%02X: %08lX\n", i, value); } } @@ -414,16 +411,13 @@ static void snd_emu_proc_io_reg_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_emu10k1 *emu = entry->private_data; - unsigned long flags; char line[64]; u32 reg, val; while (!snd_info_get_line(buffer, line, sizeof(line))) { if (sscanf(line, "%x %x", ®, &val) != 2) continue; if (reg < 0x40 && val <= 0xffffffff) { - spin_lock_irqsave(&emu->emu_lock, flags); outl(val, emu->port + (reg & 0xfffffffc)); - spin_unlock_irqrestore(&emu->emu_lock, flags); } } } |