3 files changed, 4 insertions, 4 deletions
diff --git a/includes/libs/lockmanager/FSLockManager.php b/includes/libs/lockmanager/FSLockManager.php
index f2624e721a78..019029c4807c 100644
--- a/includes/libs/lockmanager/FSLockManager.php
+++ b/includes/libs/lockmanager/FSLockManager.php
@@ -169,7 +169,7 @@ class FSLockManager extends LockManager {
 			if ( $this->locksHeld[$path][$type] <= 0 ) {
 				unset( $this->locksHeld[$path][$type] );
 			}
-			if ( !count( $this->locksHeld[$path] ) ) {
+			if ( $this->locksHeld[$path] === [] ) {
 				unset( $this->locksHeld[$path] ); // no locks on this path
 				if ( isset( $this->handles[$path] ) ) {
 					$handlesToClose[] = $this->handles[$path];
diff --git a/includes/libs/lockmanager/PostgreSqlLockManager.php b/includes/libs/lockmanager/PostgreSqlLockManager.php
index 65c69938a486..fd3ffa5cbcd6 100644
--- a/includes/libs/lockmanager/PostgreSqlLockManager.php
+++ b/includes/libs/lockmanager/PostgreSqlLockManager.php
@@ -18,7 +18,7 @@ class PostgreSqlLockManager extends DBLockManager {
 
 	protected function doGetLocksOnServer( $lockSrv, array $paths, $type ) {
 		$status = StatusValue::newGood();
-		if ( !count( $paths ) ) {
+		if ( $paths === [] ) {
 			return $status; // nothing to lock
 		}
 
diff --git a/includes/libs/lockmanager/QuorumLockManager.php b/includes/libs/lockmanager/QuorumLockManager.php
index 1d2e21aa0d70..1ef4642a84a6 100644
--- a/includes/libs/lockmanager/QuorumLockManager.php
+++ b/includes/libs/lockmanager/QuorumLockManager.php
@@ -98,7 +98,7 @@ abstract class QuorumLockManager extends LockManager {
 						$bucket = $this->getBucketFromPath( $path );
 						$pathsToUnlock[$bucket][$type][] = $path;
 					}
-					if ( !count( $this->locksHeld[$path] ) ) {
+					if ( $this->locksHeld[$path] === [] ) {
 						unset( $this->locksHeld[$path] ); // no SH or EX locks left for key
 					}
 				}
@@ -110,7 +110,7 @@ abstract class QuorumLockManager extends LockManager {
 		foreach ( $pathsToUnlock as $bucket => $pathsToUnlockByType ) {
 			$status->merge( $this->doUnlockingRequestBucket( $bucket, $pathsToUnlockByType ) );
 		}
-		if ( !count( $this->locksHeld ) ) {
+		if ( $this->locksHeld === [] ) {
 			$status->merge( $this->releaseAllLocks() );
 			$this->degradedBuckets = []; // safe to retry the normal quorum
 		}