Arnd's recent patch series tagged this device with noop_llseek,
conservatively.  In fact, it should be no_llseek, which we arrange
for by opening the device with nonseekable_open().
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
 }
 
 static const struct file_operations dev_hardwall_fops = {
+       .open           = nonseekable_open,
        .unlocked_ioctl = hardwall_ioctl,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = hardwall_compat_ioctl,
 #endif
        .flush          = hardwall_flush,
        .release        = hardwall_release,
-       .llseek         = noop_llseek,
 };
 
 static struct cdev hardwall_dev;