diff --git a/samples/rust/rust_driver_auxiliary.rs b/samples/rust/rust_driver_auxiliary.rs
index 95c552ee9489..a5d67d4d9e83 100644
--- a/samples/rust/rust_driver_auxiliary.rs
+++ b/samples/rust/rust_driver_auxiliary.rs
@@ -70,16 +70,15 @@ fn probe(pdev: &pci::Device<Core>, _info: &Self::IdInfo) -> impl PinInit<Self, E
 }
 
 impl ParentDriver {
-    fn connect(adev: &auxiliary::Device) -> Result<()> {
-        let parent = adev.parent();
-        let pdev: &pci::Device = parent.try_into()?;
+    fn connect(adev: &auxiliary::Device) -> Result {
+        let dev = adev.parent();
+        let pdev: &pci::Device = dev.try_into()?;
 
-        let vendor = pdev.vendor_id();
         dev_info!(
-            adev.as_ref(),
+            dev,
             "Connect auxiliary {} with parent: VendorID={}, DeviceID={:#x}\n",
             adev.id(),
-            vendor,
+            pdev.vendor_id(),
             pdev.device_id()
         );