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path: root/drivers/media/common/saa7146_fops.c
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Diffstat (limited to 'drivers/media/common/saa7146_fops.c')
-rw-r--r--drivers/media/common/saa7146_fops.c24
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index f8cf73ed49a..3870fa948cc 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -17,18 +17,18 @@ int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit)
}
/* is it free? */
- down(&dev->lock);
+ mutex_lock(&dev->lock);
if (vv->resources & bit) {
DEB_D(("locked! vv->resources:0x%02x, we want:0x%02x\n",vv->resources,bit));
/* no, someone else uses it */
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
/* it's free, grab it */
fh->resources |= bit;
vv->resources |= bit;
DEB_D(("res: get 0x%02x, cur:0x%02x\n",bit,vv->resources));
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 1;
}
@@ -37,14 +37,13 @@ void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits)
struct saa7146_dev *dev = fh->dev;
struct saa7146_vv *vv = dev->vv_data;
- if ((fh->resources & bits) != bits)
- BUG();
+ BUG_ON((fh->resources & bits) != bits);
- down(&dev->lock);
+ mutex_lock(&dev->lock);
fh->resources &= ~bits;
vv->resources &= ~bits;
DEB_D(("res: put 0x%02x, cur:0x%02x\n",bits,vv->resources));
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
}
@@ -55,8 +54,7 @@ void saa7146_dma_free(struct saa7146_dev *dev,struct saa7146_buf *buf)
{
DEB_EE(("dev:%p, buf:%p\n",dev,buf));
- if (in_interrupt())
- BUG();
+ BUG_ON(in_interrupt());
videobuf_waiton(&buf->vb,0,0);
videobuf_dma_pci_unmap(dev->pci, &buf->vb.dma);
@@ -204,7 +202,7 @@ static int fops_open(struct inode *inode, struct file *file)
DEB_EE(("inode:%p, file:%p, minor:%d\n",inode,file,minor));
- if (down_interruptible(&saa7146_devices_lock))
+ if (mutex_lock_interruptible(&saa7146_devices_lock))
return -ERESTARTSYS;
list_for_each(list,&saa7146_devices) {
@@ -276,7 +274,7 @@ out:
kfree(fh);
file->private_data = NULL;
}
- up(&saa7146_devices_lock);
+ mutex_unlock(&saa7146_devices_lock);
return result;
}
@@ -287,7 +285,7 @@ static int fops_release(struct inode *inode, struct file *file)
DEB_EE(("inode:%p, file:%p\n",inode,file));
- if (down_interruptible(&saa7146_devices_lock))
+ if (mutex_lock_interruptible(&saa7146_devices_lock))
return -ERESTARTSYS;
if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
@@ -303,7 +301,7 @@ static int fops_release(struct inode *inode, struct file *file)
file->private_data = NULL;
kfree(fh);
- up(&saa7146_devices_lock);
+ mutex_unlock(&saa7146_devices_lock);
return 0;
}