diff options
author | Steve French <sfrench@us.ibm.com> | 2006-03-31 03:35:56 +0000 |
---|---|---|
committer | Steve French <sfrench@us.ibm.com> | 2006-03-31 03:35:56 +0000 |
commit | d62e54abca1146981fc9f98f85ff398a113a22c2 (patch) | |
tree | 870420dbc4c65e716dcef8a802aafdc0ef97a8b4 /drivers/char/raw.c | |
parent | fd4a0b92db6a57cba8d03efbe1cebf91f9124ce0 (diff) | |
parent | ce362c009250340358a7221f3cdb7954cbf19c01 (diff) |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Signed-off-by: Steve French <sfrench@us.ibm.com>
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 30e4cbe16bb..15a7b408652 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; |