Merge pull request #56271 from tanshanshan/fix-little-scheduler

Automatic merge from submit-queue (batch tested with PRs 57211, 56150, 56368, 56271, 55957). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Put variable declared in the front.

**What this PR does / why we need it**:

put variable declared in the front.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note

```

plugin/pkg/scheduler/algorithm/predicates/predicates.go

@@ -308,7 +308,8 @@ func (c *MaxPDVolumeCountChecker) filterVolumes(volumes []v1.Volume, namespace s
 				continue
 			}
 
-			if pvc.Spec.VolumeName == "" {
+			pvName := pvc.Spec.VolumeName
+			if pvName == "" {
 				// PVC is not bound. It was either deleted and created again or
 				// it was forcefuly unbound by admin. The pod can still use the
 				// original PV where it was bound to -> log the error and count
@@ -318,7 +319,6 @@ func (c *MaxPDVolumeCountChecker) filterVolumes(volumes []v1.Volume, namespace s
 				continue
 			}
 
-			pvName := pvc.Spec.VolumeName
 			pv, err := c.pvInfo.GetPersistentVolumeInfo(pvName)
 			if err != nil || pv == nil {
 				// if the PV is not found, log the error