diff --git a/plat/intel/soc/common/socfpga_sip_svc.c b/plat/intel/soc/common/socfpga_sip_svc.c
index 56a88ab..f583a55 100644
--- a/plat/intel/soc/common/socfpga_sip_svc.c
+++ b/plat/intel/soc/common/socfpga_sip_svc.c
@@ -95,7 +95,7 @@
 	else
 		ret = intel_mailbox_get_config_status(MBOX_RECONFIG_STATUS, true);
 
-	if (ret) {
+	if (ret != 0U) {
 		if (ret == MBOX_CFGSTAT_STATE_CONFIG)
 			return INTEL_SIP_SMC_STATUS_BUSY;
 		else