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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-23 23:44:19 -0500 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-23 23:44:19 -0500 |
commit | 1ebbe2b20091d306453a5cf480a87e6cd28ae76f (patch) | |
tree | f5cd7a0fa69b8b1938cb5a0faed2e7b0628072a5 /drivers/char/raw.c | |
parent | ac58c9059da8886b5e8cde012a80266b18ca146e (diff) | |
parent | 674a396c6d2ba0341ebdd7c1c9950f32f018e2dd (diff) | |
download | op-kernel-dev-1ebbe2b20091d306453a5cf480a87e6cd28ae76f.zip op-kernel-dev-1ebbe2b20091d306453a5cf480a87e6cd28ae76f.tar.gz |
Merge branch 'linus'
Diffstat (limited to 'drivers/char/raw.c')
-rw-r--r-- | drivers/char/raw.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/char/raw.c b/drivers/char/raw.c index 30e4cbe..15a7b40 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -19,6 +19,7 @@ #include <linux/uio.h> #include <linux/cdev.h> #include <linux/device.h> +#include <linux/mutex.h> #include <asm/uaccess.h> @@ -29,7 +30,7 @@ struct raw_device_data { static struct class *raw_class; static struct raw_device_data raw_devices[MAX_RAW_MINORS]; -static DECLARE_MUTEX(raw_mutex); +static DEFINE_MUTEX(raw_mutex); static struct file_operations raw_ctl_fops; /* forward declaration */ /* @@ -53,7 +54,7 @@ static int raw_open(struct inode *inode, struct file *filp) return 0; } - down(&raw_mutex); + mutex_lock(&raw_mutex); /* * All we need to do on open is check that the device is bound. @@ -78,7 +79,7 @@ static int raw_open(struct inode *inode, struct file *filp) filp->f_dentry->d_inode->i_mapping = bdev->bd_inode->i_mapping; filp->private_data = bdev; - up(&raw_mutex); + mutex_unlock(&raw_mutex); return 0; out2: @@ -86,7 +87,7 @@ out2: out1: blkdev_put(bdev); out: - up(&raw_mutex); + mutex_unlock(&raw_mutex); return err; } @@ -99,14 +100,14 @@ static int raw_release(struct inode *inode, struct file *filp) const int minor= iminor(inode); struct block_device *bdev; - down(&raw_mutex); + mutex_lock(&raw_mutex); bdev = raw_devices[minor].binding; if (--raw_devices[minor].inuse == 0) { /* Here inode->i_mapping == bdev->bd_inode->i_mapping */ inode->i_mapping = &inode->i_data; inode->i_mapping->backing_dev_info = &default_backing_dev_info; } - up(&raw_mutex); + mutex_unlock(&raw_mutex); bd_release(bdev); blkdev_put(bdev); @@ -187,9 +188,9 @@ static int raw_ctl_ioctl(struct inode *inode, struct file *filp, goto out; } - down(&raw_mutex); + mutex_lock(&raw_mutex); if (rawdev->inuse) { - up(&raw_mutex); + mutex_unlock(&raw_mutex); err = -EBUSY; goto out; } @@ -211,11 +212,11 @@ static int raw_ctl_ioctl(struct inode *inode, struct file *filp, bind_device(&rq); } } - up(&raw_mutex); + mutex_unlock(&raw_mutex); } else { struct block_device *bdev; - down(&raw_mutex); + mutex_lock(&raw_mutex); bdev = rawdev->binding; if (bdev) { rq.block_major = MAJOR(bdev->bd_dev); @@ -223,7 +224,7 @@ static int raw_ctl_ioctl(struct inode *inode, struct file *filp, } else { rq.block_major = rq.block_minor = 0; } - up(&raw_mutex); + mutex_unlock(&raw_mutex); if (copy_to_user((void __user *)arg, &rq, sizeof(rq))) { err = -EFAULT; goto out; |