diff --git a/plat/xilinx/common/ipi.c b/plat/xilinx/common/ipi.c
index 318079b..6438896 100644
--- a/plat/xilinx/common/ipi.c
+++ b/plat/xilinx/common/ipi.c
@@ -141,7 +141,7 @@
  */
 int ipi_mb_enquire_status(uint32_t local, uint32_t remote)
 {
-	int ret = 0;
+	int ret = 0U;
 	uint32_t status;
 
 	status = mmio_read_32(IPI_REG_BASE(local) + IPI_OBR_OFFSET);