cdx: Fix device node reference leak in cdx_msi_domain_init

Add missing of_node_put() call to release
the device node reference obtained via of_parse_phandle().

Fixes: 0e439ba38e61 ("cdx: add MSI support for CDX bus")
Cc: [e-mail]
Signed-off-by: Miaoqian Lin <[e-mail]>
Acked-by: Nipun Gupta <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/cdx/cdx_msi.c

···
 	}
 
 	parent = irq_find_matching_fwnode(of_fwnode_handle(parent_node), DOMAIN_BUS_NEXUS);
+	of_node_put(parent_node);
 	if (!parent || !msi_get_domain_info(parent)) {
 		dev_err(dev, "unable to locate ITS domain\n");
 		return NULL;