diff --git a/lib/sbi/riscv_asm.c b/lib/sbi/riscv_asm.c
index 05b8c7ce6e3..c7d75ac0155 100644
--- a/lib/sbi/riscv_asm.c
+++ b/lib/sbi/riscv_asm.c
@@ -291,7 +291,8 @@ int is_pmp_entry_mapped(unsigned long entry)
 	unsigned long addr;
 	unsigned long log2len;
 
-	pmp_get(entry, &prot, &addr, &log2len);
+	if (pmp_get(entry, &prot, &addr, &log2len) != 0)
+		return false;
 
 	/* If address matching bits are non-zero, the entry is enable */
 	if (prot & PMP_A)