diff --git a/kernel/common/printk.c b/kernel/common/printk.c
index 4b9afcc2..a5581002 100644
--- a/kernel/common/printk.c
+++ b/kernel/common/printk.c
@@ -64,7 +64,7 @@ static int scroll(bool direction, int pixels, bool animation);
  * @param precision 精度
  * @param flags 标志位
  */
-static char *write_num(char *str,ul num, int base, int field_width, int precision, int flags);
+static char *write_num(char *str, ul num, int base, int field_width, int precision, int flags);
 
 static char *write_float_point_num(char *str, double num, int field_width, int precision, int flags);
 
diff --git a/kernel/driver/pci/pci.h b/kernel/driver/pci/pci.h
index 65992a17..559b3da3 100644
--- a/kernel/driver/pci/pci.h
+++ b/kernel/driver/pci/pci.h
@@ -6,9 +6,8 @@
 #define PORT_PCI_CONFIG_ADDRESS 0xcf8
 #define PORT_PCI_CONFIG_DATA 0xcfc
 
-
 // pci设备结构信息的链表
-struct List * pci_device_structure_list = NULL;
+struct List *pci_device_structure_list = NULL;
 
 /**
  * @brief 初始化pci驱动
@@ -122,7 +121,6 @@ struct pci_device_structure_pci_to_pci_bridge_t
 
 } __attribute__((packed));
 
-
 /**
  * @brief 表头类型为0x2的pci设备结构（PCI to CardBus Bridge）
  *
@@ -162,7 +160,6 @@ struct pci_device_structure_pci_to_cardbus_bridge_t
 
 } __attribute__((packed));
 
-
 /**
  * @brief 从pci配置空间读取信息
  *
@@ -194,24 +191,22 @@ uint pci_write_config(uchar bus, uchar slot, uchar func, uchar offset, uint32_t
  * @param func 功能号
  * @return 返回的header的指针
  */
-void* pci_read_header(int *type, uchar bus, uchar slot, uchar func, bool add_to_list);
+void *pci_read_header(int *type, uchar bus, uchar slot, uchar func, bool add_to_list);
 
 /**
  * @brief 扫描所有pci总线上的所有设备
- * 
+ *
  */
 void pci_checkAllBuses();
 
-
-
 /**
  * @brief 获取 device structure
- * 
- * @param class_code 
- * @param sub_class 
+ *
+ * @param class_code
+ * @param sub_class
  * @param res 返回的结果数组
  */
-void pci_get_device_structure(uint8_t class_code, uint8_t sub_class, struct pci_device_structure_header_t* res[], uint32_t* count_res);
+void pci_get_device_structure(uint8_t class_code, uint8_t sub_class, struct pci_device_structure_header_t *res[], uint32_t *count_res);
 
 /**
  * @brief 寻找符合指定类型的capability list