1 files changed, 1 insertions, 0 deletions

diff --git a/arch/um/drivers/harddog_kern.c b/arch/um/drivers/harddog_kern.c
index cfcac1ff4cf2..dd1e6f871fe4 100644
--- a/arch/um/drivers/harddog_kern.c
+++ b/arch/um/drivers/harddog_kern.c
@@ -166,6 +166,7 @@ static const struct file_operations harddog_fops = {
         .unlocked_ioctl = harddog_ioctl,
         .open           = harddog_open,
         .release        = harddog_release,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice harddog_miscdev = {