int alloc_event_buffer(void)
{
int err = -ENOMEM;
+ unsigned long flags;
- spin_lock(&oprofilefs_lock);
+ spin_lock_irqsave(&oprofilefs_lock, flags);
buffer_size = fs_buffer_size;
buffer_watershed = fs_buffer_watershed;
- spin_unlock(&oprofilefs_lock);
+ spin_unlock_irqrestore(&oprofilefs_lock, flags);
if (buffer_watershed >= buffer_size)
return -EINVAL;
return retval;
}
-struct file_operations event_buffer_fops = {
+const struct file_operations event_buffer_fops = {
.open = event_buffer_open,
.release = event_buffer_release,
.read = event_buffer_read,