diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f0.c b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f0.c
index 0a73e968e20ab93ef67c683a9d7de8010ca5f5b2..b8d42c849255076fce54718df5ceec012d79205b 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f0.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f0.c
@@ -167,7 +167,7 @@ __exit:
     }
 
     LOG_D("erase done: addr (0x%p), size %d", (void *)addr, size);
-    return result;
+    return size;
 }
 
 #if defined(PKG_USING_FAL)
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f1.c b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f1.c
index 37022dd1ca38ce418440f1250214bcf198df6697..8f7d45ade7caed700b42e6b41f7800c39a95781c 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f1.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f1.c
@@ -167,7 +167,7 @@ __exit:
     }
 
     LOG_D("erase done: addr (0x%p), size %d", (void *)addr, size);
-    return result;
+    return size;
 }
 
 #if defined(PKG_USING_FAL)
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f4.c b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f4.c
index 0bafd5b779a27c4e99cbff67132e98ad429e7b4b..f36d5cdc697995b56bf11603eb1a0def3629552c 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f4.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f4.c
@@ -310,7 +310,7 @@ __exit:
     }
 
     LOG_D("erase done: addr (0x%p), size %d", (void*)addr, size);
-    return result;
+    return size;
 }
 
 #if defined(PKG_USING_FAL)
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f7.c b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f7.c
index 58f3d2029bed0d60908a5da532a27905a24b4c31..3ecb0be5e9ff21a1b841005693d9a3a47da4a879 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f7.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_f7.c
@@ -382,7 +382,7 @@ __exit:
     }
 
     LOG_D("erase done: addr (0x%p), size %d", (void *)addr, size);
-    return result;
+    return size;
 }
 
 #if defined(PKG_USING_FAL)