#include <linux/poll.h>
#include <linux/compat.h>
#include <linux/mm.h>
+#include <linux/smp_lock.h>
#include <asm/uaccess.h>
size_t size;
int rc;
+ lock_kernel();
mutex_lock(&mon_lock);
if ((mbus = mon_bus_lookup(iminor(inode))) == NULL) {
mutex_unlock(&mon_lock);
+ unlock_kernel();
return -ENODEV;
}
if (mbus != &mon_bus0 && mbus->u_bus == NULL) {
printk(KERN_ERR TAG ": consistency error on open\n");
mutex_unlock(&mon_lock);
+ unlock_kernel();
return -ENODEV;
}
file->private_data = rp;
mutex_unlock(&mon_lock);
+ unlock_kernel();
return 0;
err_allocbuff:
kfree(rp);
err_alloc:
mutex_unlock(&mon_lock);
+ unlock_kernel();
return rc;
}
return mask;
}
-#if 0
-
/*
* open and close: just keep track of how many times the device is
* mapped, to use the proper memory allocation function.
return 0;
}
-struct vm_operations_struct mon_bin_vm_ops = {
+static struct vm_operations_struct mon_bin_vm_ops = {
.open = mon_bin_vma_open,
.close = mon_bin_vma_close,
.fault = mon_bin_vma_fault,
};
-int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma)
+static int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma)
{
/* don't do anything here: "fault" will set up page table entries */
vma->vm_ops = &mon_bin_vm_ops;
return 0;
}
-#endif /* 0 */
-
static const struct file_operations mon_fops_binary = {
.owner = THIS_MODULE,
.open = mon_bin_open,
.poll = mon_bin_poll,
.ioctl = mon_bin_ioctl,
.release = mon_bin_release,
+ .mmap = mon_bin_mmap,
};
static int mon_bin_wait_event(struct file *file, struct mon_reader_bin *rp)
if (minor >= MON_BIN_MAX_MINOR)
return 0;
- dev = device_create(mon_bin_class, ubus? ubus->controller: NULL,
- MKDEV(MAJOR(mon_bin_dev0), minor), "usbmon%d", minor);
+ dev = device_create_drvdata(mon_bin_class, ubus? ubus->controller: NULL,
+ MKDEV(MAJOR(mon_bin_dev0), minor), NULL,
+ "usbmon%d", minor);
if (IS_ERR(dev))
return 0;