From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/sound/core/seq/seq_fifo.c | 31 +++++++------------------------
1 files changed, 7 insertions(+), 24 deletions(-)
diff --git a/kernel/sound/core/seq/seq_fifo.c b/kernel/sound/core/seq/seq_fifo.c
index 6a24732..eaaa8b5 100644
--- a/kernel/sound/core/seq/seq_fifo.c
+++ b/kernel/sound/core/seq/seq_fifo.c
@@ -1,22 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ALSA sequencer FIFO
* Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <sound/core.h>
@@ -98,18 +83,17 @@
void snd_seq_fifo_clear(struct snd_seq_fifo *f)
{
struct snd_seq_event_cell *cell;
- unsigned long flags;
/* clear overflow flag */
atomic_set(&f->overflow, 0);
snd_use_lock_sync(&f->use_lock);
- spin_lock_irqsave(&f->lock, flags);
+ spin_lock_irq(&f->lock);
/* drain the fifo */
while ((cell = fifo_cell_out(f)) != NULL) {
snd_seq_cell_free(cell);
}
- spin_unlock_irqrestore(&f->lock, flags);
+ spin_unlock_irq(&f->lock);
}
@@ -195,9 +179,9 @@
}
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&f->input_sleep, &wait);
- spin_unlock_irq(&f->lock);
+ spin_unlock_irqrestore(&f->lock, flags);
schedule();
- spin_lock_irq(&f->lock);
+ spin_lock_irqsave(&f->lock, flags);
remove_wait_queue(&f->input_sleep, &wait);
if (signal_pending(current)) {
spin_unlock_irqrestore(&f->lock, flags);
@@ -239,7 +223,6 @@
/* change the size of pool; all old events are removed */
int snd_seq_fifo_resize(struct snd_seq_fifo *f, int poolsize)
{
- unsigned long flags;
struct snd_seq_pool *newpool, *oldpool;
struct snd_seq_event_cell *cell, *next, *oldhead;
@@ -255,7 +238,7 @@
return -ENOMEM;
}
- spin_lock_irqsave(&f->lock, flags);
+ spin_lock_irq(&f->lock);
/* remember old pool */
oldpool = f->pool;
oldhead = f->head;
@@ -265,7 +248,7 @@
f->tail = NULL;
f->cells = 0;
/* NOTE: overflow flag is not cleared */
- spin_unlock_irqrestore(&f->lock, flags);
+ spin_unlock_irq(&f->lock);
/* close the old pool and wait until all users are gone */
snd_seq_pool_mark_closing(oldpool);
--
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