libct: add a defer fd close in createDeviceNode

lifubang · lifubang · commit d505a0c2f376 · 2025-11-19T07:53:56.000Z
Signed-off-by: lifubang &lt;lifubang@acmcoder.com&gt;
diff --git a/libcontainer/rootfs_linux.go b/libcontainer/rootfs_linux.go
@@ -994,6 +994,8 @@ func createDeviceNode(rootfs string, node *devices.Device, bind bool) error {
 	if err != nil {
 		return fmt.Errorf("mkdir parent of device inode %q: %w", node.Path, err)
 	}
+	defer destDir.Close()
+
 	if bind {
 		return bindMountDeviceNode(destDir, destName, node)
 	}

Original file line number	Diff line number	Diff line change
`@@ -994,6 +994,8 @@ func createDeviceNode(rootfs string, node *devices.Device, bind bool) error {`
`994`	`994`	`if err != nil {`
`995`	`995`	`return fmt.Errorf("mkdir parent of device inode %q: %w", node.Path, err)`
`996`	`996`	`}`
	`997`	`+ defer destDir.Close()`
	`998`	`+`
`997`	`999`	`if bind {`
`998`	`1000`	`return bindMountDeviceNode(destDir, destName, node)`
`999`	`1001`	`}`