diff --git a/devices/src/virtio/vhost/user/device/wl.rs b/devices/src/virtio/vhost/user/device/wl.rs
index 56afdd15a9..630510ce50 100644
--- a/devices/src/virtio/vhost/user/device/wl.rs
+++ b/devices/src/virtio/vhost/user/device/wl.rs
@@ -62,8 +62,8 @@ async fn run_in_queue(
             break;
         }
 
-        if let Err(wl::DescriptorsExhausted) =
-            wl::process_in_queue(&doorbell, &mut queue, &mem, &mut wlstate.borrow_mut())
+        if wl::process_in_queue(&doorbell, &mut queue, &mem, &mut wlstate.borrow_mut())
+            == Err(wl::DescriptorsExhausted)
         {
             if let Err(e) = kick_evt.next_val().await {
                 error!("Failed to read kick event for in queue: {}", e);
diff --git a/devices/src/virtio/wl.rs b/devices/src/virtio/wl.rs
index fa7de516ed..8e1f3e13dc 100644
--- a/devices/src/virtio/wl.rs
+++ b/devices/src/virtio/wl.rs
@@ -1492,7 +1492,7 @@ impl WlState {
     }
 }
 
-#[derive(ThisError, Debug)]
+#[derive(ThisError, Debug, PartialEq)]
 #[error("no descriptors available in queue")]
 pub struct DescriptorsExhausted;