From 910f5d202ce39cc78de1bbb679285a3167de9fb2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Thu, 23 Mar 2006 03:00:39 -0800
Subject: [PATCH] sem2mutex: sound/oss/

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 sound/oss/btaudio.c | 36 +++++++++++++++++++-----------------
 1 file changed, 19 insertions(+), 17 deletions(-)

(limited to 'sound/oss/btaudio.c')

diff --git a/sound/oss/btaudio.c b/sound/oss/btaudio.c
index 4007a5680ac..bfe3b534ef3 100644
--- a/sound/oss/btaudio.c
+++ b/sound/oss/btaudio.c
@@ -32,6 +32,8 @@
 #include <linux/soundcard.h>
 #include <linux/slab.h>
 #include <linux/kdev_t.h>
+#include <linux/mutex.h>
+
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
@@ -108,7 +110,7 @@ struct btaudio {
 
 	/* locking */
 	int            users;
-	struct semaphore lock;
+	struct mutex lock;
 
 	/* risc instructions */
 	unsigned int   risc_size;
@@ -440,7 +442,7 @@ static struct file_operations btaudio_mixer_fops = {
 static int btaudio_dsp_open(struct inode *inode, struct file *file,
 			    struct btaudio *bta, int analog)
 {
-	down(&bta->lock);
+	mutex_lock(&bta->lock);
 	if (bta->users)
 		goto busy;
 	bta->users++;
@@ -452,11 +454,11 @@ static int btaudio_dsp_open(struct inode *inode, struct file *file,
 	bta->read_count = 0;
 	bta->sampleshift = 0;
 
-	up(&bta->lock);
+	mutex_unlock(&bta->lock);
 	return 0;
 
  busy:
-	up(&bta->lock);
+	mutex_unlock(&bta->lock);
 	return -EBUSY;
 }
 
@@ -496,11 +498,11 @@ static int btaudio_dsp_release(struct inode *inode, struct file *file)
 {
 	struct btaudio *bta = file->private_data;
 
-	down(&bta->lock);
+	mutex_lock(&bta->lock);
 	if (bta->recording)
 		stop_recording(bta);
 	bta->users--;
-	up(&bta->lock);
+	mutex_unlock(&bta->lock);
 	return 0;
 }
 
@@ -513,7 +515,7 @@ static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer,
 	DECLARE_WAITQUEUE(wait, current);
 
 	add_wait_queue(&bta->readq, &wait);
-	down(&bta->lock);
+	mutex_lock(&bta->lock);
 	while (swcount > 0) {
 		if (0 == bta->read_count) {
 			if (!bta->recording) {
@@ -528,10 +530,10 @@ static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer,
 					ret = -EAGAIN;
 				break;
 			}
-			up(&bta->lock);
+			mutex_unlock(&bta->lock);
 			current->state = TASK_INTERRUPTIBLE;
 			schedule();
-			down(&bta->lock);
+			mutex_lock(&bta->lock);
 			if(signal_pending(current)) {
 				if (0 == ret)
 					ret = -EINTR;
@@ -604,7 +606,7 @@ static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer,
 		if (bta->read_offset == bta->buf_size)
 			bta->read_offset = 0;
 	}
-	up(&bta->lock);
+	mutex_unlock(&bta->lock);
 	remove_wait_queue(&bta->readq, &wait);
 	current->state = TASK_RUNNING;
 	return ret;
@@ -651,10 +653,10 @@ static int btaudio_dsp_ioctl(struct inode *inode, struct file *file,
 			bta->decimation  = 0;
 		}
 		if (bta->recording) {
-			down(&bta->lock);
+			mutex_lock(&bta->lock);
 			stop_recording(bta);
 			start_recording(bta);
-			up(&bta->lock);
+			mutex_unlock(&bta->lock);
 		}
 		/* fall through */
         case SOUND_PCM_READ_RATE:
@@ -716,10 +718,10 @@ static int btaudio_dsp_ioctl(struct inode *inode, struct file *file,
 			else
 				bta->bits = 16;
 			if (bta->recording) {
-				down(&bta->lock);
+				mutex_lock(&bta->lock);
 				stop_recording(bta);
 				start_recording(bta);
-				up(&bta->lock);
+				mutex_unlock(&bta->lock);
 			}
 		}
 		if (debug)
@@ -736,9 +738,9 @@ static int btaudio_dsp_ioctl(struct inode *inode, struct file *file,
 
         case SNDCTL_DSP_RESET:
 		if (bta->recording) {
-			down(&bta->lock);
+			mutex_lock(&bta->lock);
 			stop_recording(bta);
-			up(&bta->lock);
+			mutex_unlock(&bta->lock);
 		}
 		return 0;
         case SNDCTL_DSP_GETBLKSIZE:
@@ -941,7 +943,7 @@ static int __devinit btaudio_probe(struct pci_dev *pci_dev,
 	if (rate)
 		bta->rate = rate;
 	
-	init_MUTEX(&bta->lock);
+	mutex_init(&bta->lock);
         init_waitqueue_head(&bta->readq);
 
 	if (-1 != latency) {
-- 
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