修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/sound/core/seq/seq_fifo.c
..
..
@@ -1,22 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  *   ALSA sequencer FIFO
3
4
  *   Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
4
- *
5
- *
6
- *   This program is free software; you can redistribute it and/or modify
7
- *   it under the terms of the GNU General Public License as published by
8
- *   the Free Software Foundation; either version 2 of the License, or
9
- *   (at your option) any later version.
10
- *
11
- *   This program is distributed in the hope that it will be useful,
12
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
- *   GNU General Public License for more details.
15
- *
16
- *   You should have received a copy of the GNU General Public License
17
- *   along with this program; if not, write to the Free Software
18
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19
- *
20
5
  */
21
6
 
22
7
 #include <sound/core.h>
..
..
@@ -98,18 +83,17 @@
98
83
 void snd_seq_fifo_clear(struct snd_seq_fifo *f)
99
84
 {
100
85
 	struct snd_seq_event_cell *cell;
101
-	unsigned long flags;
102
86
 
103
87
 	/* clear overflow flag */
104
88
 	atomic_set(&f->overflow, 0);
105
89
 
106
90
 	snd_use_lock_sync(&f->use_lock);
107
-	spin_lock_irqsave(&f->lock, flags);
91
+	spin_lock_irq(&f->lock);
108
92
 	/* drain the fifo */
109
93
 	while ((cell = fifo_cell_out(f)) != NULL) {
110
94
 		snd_seq_cell_free(cell);
111
95
 	}
112
-	spin_unlock_irqrestore(&f->lock, flags);
96
+	spin_unlock_irq(&f->lock);
113
97
 }
114
98
 
115
99
 
..
..
@@ -195,9 +179,9 @@
195
179
 		}
196
180
 		set_current_state(TASK_INTERRUPTIBLE);
197
181
 		add_wait_queue(&f->input_sleep, &wait);
198
-		spin_unlock_irq(&f->lock);
182
+		spin_unlock_irqrestore(&f->lock, flags);
199
183
 		schedule();
200
-		spin_lock_irq(&f->lock);
184
+		spin_lock_irqsave(&f->lock, flags);
201
185
 		remove_wait_queue(&f->input_sleep, &wait);
202
186
 		if (signal_pending(current)) {
203
187
 			spin_unlock_irqrestore(&f->lock, flags);
..
..
@@ -239,7 +223,6 @@
239
223
 /* change the size of pool; all old events are removed */
240
224
 int snd_seq_fifo_resize(struct snd_seq_fifo *f, int poolsize)
241
225
 {
242
-	unsigned long flags;
243
226
 	struct snd_seq_pool *newpool, *oldpool;
244
227
 	struct snd_seq_event_cell *cell, *next, *oldhead;
245
228
 
..
..
@@ -255,7 +238,7 @@
255
238
 		return -ENOMEM;
256
239
 	}
257
240
 
258
-	spin_lock_irqsave(&f->lock, flags);
241
+	spin_lock_irq(&f->lock);
259
242
 	/* remember old pool */
260
243
 	oldpool = f->pool;
261
244
 	oldhead = f->head;
..
..
@@ -265,7 +248,7 @@
265
248
 	f->tail = NULL;
266
249
 	f->cells = 0;
267
250
 	/* NOTE: overflow flag is not cleared */
268
-	spin_unlock_irqrestore(&f->lock, flags);
251
+	spin_unlock_irq(&f->lock);
269
252
 
270
253
 	/* close the old pool and wait until all users are gone */
271
254
 	snd_seq_pool_mark_closing(oldpool);