diff --git a/bsp/simulator/drivers/module_win32.c b/bsp/simulator/drivers/module_win32.c
index b1501f4765..0d4abd22ec 100644
--- a/bsp/simulator/drivers/module_win32.c
+++ b/bsp/simulator/drivers/module_win32.c
@@ -347,8 +347,6 @@ rt_module_t rt_module_open(const char *path)
     /* FreeLibrary(hinstlib); */
 }
 
-
-
 #endif
 
 #define RT_MODULE_ARG_MAX    8
diff --git a/components/dfs/dfs_v1/src/dfs_posix.c b/components/dfs/dfs_v1/src/dfs_posix.c
index 352cc0a3ab..1d705cbafe 100644
--- a/components/dfs/dfs_v1/src/dfs_posix.c
+++ b/components/dfs/dfs_v1/src/dfs_posix.c
@@ -978,7 +978,6 @@ int chdir(const char *path)
 }
 RTM_EXPORT(chdir);
 
-
 #endif
 
 /**
diff --git a/components/dfs/dfs_v2/src/dfs_posix.c b/components/dfs/dfs_v2/src/dfs_posix.c
index ec79a2547c..da446e35ed 100644
--- a/components/dfs/dfs_v2/src/dfs_posix.c
+++ b/components/dfs/dfs_v2/src/dfs_posix.c
@@ -1241,7 +1241,6 @@ int chdir(const char *path)
 }
 RTM_EXPORT(chdir);
 
-
 #endif
 
 /**
diff --git a/components/drivers/mtd/mtd_nand.c b/components/drivers/mtd/mtd_nand.c
index 95749520a8..0f17075751 100644
--- a/components/drivers/mtd/mtd_nand.c
+++ b/components/drivers/mtd/mtd_nand.c
@@ -411,8 +411,6 @@ help:
 MSH_CMD_EXPORT(mtd_nand, MTD nand device test function);
 #endif /* RT_USING_FINSH */
 
-
-
 #endif /* defined(RT_MTD_NAND_DEBUG) && defined(RT_USING_FINSH) */
 
 #endif /* RT_USING_MTD_NAND */
diff --git a/components/vbus/vbus.c b/components/vbus/vbus.c
index e212f9078c..5e62488764 100644
--- a/components/vbus/vbus.c
+++ b/components/vbus/vbus.c
@@ -1303,5 +1303,3 @@ void rt_vbus_chm_wm_dump(void)
 }
 #endif
 
-
-
diff --git a/libcpu/arm/realview-a8-vmm/gic.c b/libcpu/arm/realview-a8-vmm/gic.c
index de6da116e7..aad0ac3aba 100644
--- a/libcpu/arm/realview-a8-vmm/gic.c
+++ b/libcpu/arm/realview-a8-vmm/gic.c
@@ -183,7 +183,6 @@ void arm_gic_dump(rt_uint32_t index)
     rt_kprintf("\n");
 }
 
-
 int arm_gic_dist_init(rt_uint32_t index, rt_uint32_t dist_base, int irq_start)
 {
     unsigned int gic_type, i;