diff --git a/arch/arm/arm/include/los_mmu_descriptor_v6.h b/arch/arm/arm/include/los_mmu_descriptor_v6.h
index 1eb04229ea3bf412033e8acf19e741979920ab9b..d8744100b8a78f0eb4b9cbc2e13b2ac3a52d394a 100644
--- a/arch/arm/arm/include/los_mmu_descriptor_v6.h
+++ b/arch/arm/arm/include/los_mmu_descriptor_v6.h
@@ -158,7 +158,7 @@ extern "C" {
 #define MMU_DESCRIPTOR_L2_AP01_0                                (MMU_DESCRIPTOR_L2_AP01(0))
 #define MMU_DESCRIPTOR_L2_AP01_1                                (MMU_DESCRIPTOR_L2_AP01(1))
 #define MMU_DESCRIPTOR_L2_AP01_3                                (MMU_DESCRIPTOR_L2_AP01(3))
-#define MMU_DESCRIPTOR_L2_AP_P_NA_U_NA                          (MMUDESCRIPTOR_L2_AP2_0 | MMU_DESCRIPTOR_L2_AP01_0)
+#define MMU_DESCRIPTOR_L2_AP_P_NA_U_NA                          (MMU_DESCRIPTOR_L2_AP2_0 | MMU_DESCRIPTOR_L2_AP01_0)
 #define MMU_DESCRIPTOR_L2_AP_P_RW_U_RW                          (MMU_DESCRIPTOR_L2_AP2_0 | MMU_DESCRIPTOR_L2_AP01_3)
 #define MMU_DESCRIPTOR_L2_AP_P_RW_U_NA                          (MMU_DESCRIPTOR_L2_AP2_0 | MMU_DESCRIPTOR_L2_AP01_1)
 #define MMU_DESCRIPTOR_L2_AP_P_RO_U_RO                          (MMU_DESCRIPTOR_L2_AP2_1 | MMU_DESCRIPTOR_L2_AP01_3)
diff --git a/kernel/base/core/los_bitmap.c b/kernel/base/core/los_bitmap.c
index 937084cd63d1829010fb72b7ce70f77a8a5ce50a..ae62a47c259a8453014d748a01733300776324e7 100644
--- a/kernel/base/core/los_bitmap.c
+++ b/kernel/base/core/los_bitmap.c
@@ -92,7 +92,7 @@ VOID LOS_BitmapSetNBits(UINTPTR *bitmap, UINT32 start, UINT32 numsSet)
     UINTPTR maskToSet = BITMAP_FIRST_WORD_MASK(start);
 
     while (numsSet > bitsToSet) {
-        *p |= bitsToSet;
+        *p |= maskToSet;
         numsSet -= bitsToSet;
         bitsToSet = BITMAP_BITS_PER_WORD;
         maskToSet = OS_BITMAP_WORD_MASK;