#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/mutex.h>
+#include <linux/smp_lock.h>
#include <asm/uaccess.h>
return 0;
}
+ lock_kernel();
mutex_lock(&raw_mutex);
/*
filp->f_flags |= O_DIRECT;
filp->f_mapping = bdev->bd_inode->i_mapping;
if (++raw_devices[minor].inuse == 1)
- filp->f_dentry->d_inode->i_mapping =
+ filp->f_path.dentry->d_inode->i_mapping =
bdev->bd_inode->i_mapping;
filp->private_data = bdev;
mutex_unlock(&raw_mutex);
+ unlock_kernel();
return 0;
out2:
goto out;
}
- if (rq.raw_minor < 0 || rq.raw_minor >= MAX_RAW_MINORS) {
+ if (rq.raw_minor <= 0 || rq.raw_minor >= MAX_RAW_MINORS) {
err = -EINVAL;
goto out;
}
.owner = THIS_MODULE,
};
-static struct cdev raw_cdev = {
- .kobj = {.name = "raw", },
- .owner = THIS_MODULE,
-};
+static struct cdev raw_cdev;
static int __init raw_init(void)
{