diff --git a/mpp/base/mpp_buffer_impl.cpp b/mpp/base/mpp_buffer_impl.cpp
index 3e4c0fe3..d82c86b9 100644
--- a/mpp/base/mpp_buffer_impl.cpp
+++ b/mpp/base/mpp_buffer_impl.cpp
@@ -127,7 +127,7 @@ MPP_RET deinit_group_no_lock(MppBufferGroupImpl *group)
         group->count_used   = 0;
     }
 
-    mpp_alloctor_put(&group->allocator);
+    mpp_allocator_put(&group->allocator);
     list_del_init(&group->list_group);
     mpp_free(group);
     service.group_count--;
@@ -383,7 +383,7 @@ MPP_RET mpp_buffer_group_init(MppBufferGroupImpl **group, const char *tag, const
     } while (p->group_id != service.group_id);
     service.group_count++;
 
-    mpp_alloctor_get(&p->allocator, &p->alloc_api, type);
+    mpp_allocator_get(&p->allocator, &p->alloc_api, type);
 
     *group = p;
 
@@ -540,7 +540,7 @@ MppBufferService::MppBufferService()
     group_id++;
     group_count++;
 
-    mpp_alloctor_get(&p->allocator, &p->alloc_api, MPP_BUFFER_TYPE_ION);
+    mpp_allocator_get(&p->allocator, &p->alloc_api, MPP_BUFFER_TYPE_ION);
 
     mLegacyGroup = p;
 }
diff --git a/osal/inc/mpp_allocator.h b/osal/inc/mpp_allocator.h
index ab680ad3..a958d5eb 100644
--- a/osal/inc/mpp_allocator.h
+++ b/osal/inc/mpp_allocator.h
@@ -36,8 +36,8 @@ typedef struct MppAllocatorApi_t {
 extern "C" {
 #endif
 
-MPP_RET mpp_alloctor_get(MppAllocator *allocator, MppAllocatorApi **api, MppBufferType type);
-MPP_RET mpp_alloctor_put(MppAllocator *allocator);
+MPP_RET mpp_allocator_get(MppAllocator *allocator, MppAllocatorApi **api, MppBufferType type);
+MPP_RET mpp_allocator_put(MppAllocator *allocator);
 
 #ifdef __cplusplus
 }
diff --git a/osal/mpp_allocator.cpp b/osal/mpp_allocator.cpp
index 0855ef8f..46c66f96 100644
--- a/osal/mpp_allocator.cpp
+++ b/osal/mpp_allocator.cpp
@@ -109,7 +109,7 @@ static MppAllocatorApi mpp_allocator_api = {
     mpp_allocator_release,
 };
 
-MPP_RET mpp_alloctor_get(MppAllocator *allocator, MppAllocatorApi **api, MppBufferType type)
+MPP_RET mpp_allocator_get(MppAllocator *allocator, MppAllocatorApi **api, MppBufferType type)
 {
     if (NULL == allocator || NULL == api || type >= MPP_BUFFER_TYPE_BUTT) {
         mpp_err_f("invalid input: allocator %p api %p type %d\n",
@@ -119,7 +119,7 @@ MPP_RET mpp_alloctor_get(MppAllocator *allocator, MppAllocatorApi **api, MppBuff
 
     MppAllocatorImpl *p = mpp_malloc(MppAllocatorImpl, 1);
     if (NULL == p) {
-        mpp_err("mpp_alloctor_get failed to malloc allocator context\n");
+        mpp_err("mpp_allocator_get failed to malloc allocator context\n");
         return MPP_ERR_NULL_PTR;
     } else
         p->type = type;
@@ -140,7 +140,7 @@ MPP_RET mpp_alloctor_get(MppAllocator *allocator, MppAllocatorApi **api, MppBuff
         *allocator  = p;
         *api        = &mpp_allocator_api;
     } else {
-        mpp_err("mpp_alloctor_get type %d failed\n", type);
+        mpp_err("mpp_allocator_get type %d failed\n", type);
         mpp_free(p);
         *allocator  = NULL;
         *api        = NULL;
@@ -149,7 +149,7 @@ MPP_RET mpp_alloctor_get(MppAllocator *allocator, MppAllocatorApi **api, MppBuff
     return ret;
 }
 
-MPP_RET mpp_alloctor_put(MppAllocator *allocator)
+MPP_RET mpp_allocator_put(MppAllocator *allocator)
 {
     if (NULL == allocator) {
         mpp_err_f("invalid input: allocator %p\n", allocator);