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 0a73e968e2..b8d42c8492 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 37022dd1ca..8f7d45ade7 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 0bafd5b779..f36d5cdc69 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 58f3d2029b..3ecb0be5e9 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)