ASoC: fsl: mpc8610_hpcd: Add missing of_node_put()

After finishing using device node got from of_find_compatible_node(),
of_node_put() needs to be called.
Signed-off-by: NLiao Pingfang <liao.pingfang@zte.com.cn>
Link: https://lore.kernel.org/r/1594122467-11615-1-git-send-email-wang.yi59@zte.com.cnSigned-off-by: NMark Brown <broonie@kernel.org>

sound/soc/fsl/mpc8610_hpcd.c

@@ -426,9 +426,11 @@ static int __init mpc8610_hpcd_init(void)
 	guts_np = of_find_compatible_node(NULL, NULL, "fsl,mpc8610-guts");
 	if (of_address_to_resource(guts_np, 0, &res)) {
 		pr_err("mpc8610-hpcd: missing/invalid global utilities node\n");
+		of_node_put(guts_np);
 		return -EINVAL;
 	}
 	guts_phys = res.start;
+	of_node_put(guts_np);
 
 	return platform_driver_register(&mpc8610_hpcd_driver);
 }