diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c
index cad347a05d18aaf885ca71462d07a5cda218c96d..8c99f919cae1b5966c605a8bc05ab70e15a3b91e 100644
--- a/drivers/staging/gdm72xx/gdm_qos.c
+++ b/drivers/staging/gdm72xx/gdm_qos.c
@@ -28,7 +28,7 @@
 static struct {
 	struct list_head head;
 	int cnt;
-	spinlock_t lock;
+	spinlock_t lock; /* protect structure fields */
 } qos_free_list;
 
 static void init_qos_entry_list(void)
diff --git a/drivers/staging/gdm72xx/gdm_qos.h b/drivers/staging/gdm72xx/gdm_qos.h
index bbc8aab338b50138a9cd40bf6acd658aa924302b..a4e5c1c5677f0ae904bc36196b791fd45dfb74e8 100644
--- a/drivers/staging/gdm72xx/gdm_qos.h
+++ b/drivers/staging/gdm72xx/gdm_qos.h
@@ -62,7 +62,7 @@ struct qos_cb_s {
 	int			qos_list_cnt;
 	int			qos_null_idx;
 	struct gdm_wimax_csr_s	csr[QOS_MAX];
-	spinlock_t		qos_lock;
+	spinlock_t		qos_lock; /* Protect structure fields */
 	int			qos_limit_size;
 };
 
diff --git a/drivers/staging/gdm72xx/gdm_sdio.h b/drivers/staging/gdm72xx/gdm_sdio.h
index aa7dad22a219d0ee471f6e63a0df95114a6c4d17..30428b061c91e7f072c4e82a9359ac90c82f7b6c 100644
--- a/drivers/staging/gdm72xx/gdm_sdio.h
+++ b/drivers/staging/gdm72xx/gdm_sdio.h
@@ -34,7 +34,7 @@ struct tx_cxt {
 	struct list_head	hci_list;
 	ktime_t			sdu_stamp;
 	u8			*sdu_buf;
-	spinlock_t		lock;
+	spinlock_t		lock; /* protect structure fields */
 	int			can_send;
 	int			stop_sdu_tx;
 };
@@ -50,7 +50,7 @@ struct rx_cxt {
 	struct list_head	free_list;
 	struct list_head	req_list;
 	u8			*rx_buf;
-	spinlock_t		lock;
+	spinlock_t		lock; /* protect structure fields */
 };
 
 struct sdiowm_dev {
diff --git a/drivers/staging/gdm72xx/gdm_usb.h b/drivers/staging/gdm72xx/gdm_usb.h
index 8e58a25e71438f894035e093d2492fecb9e1f565..f128914f8f5442d0914951e3a67e8b9267870ff1 100644
--- a/drivers/staging/gdm72xx/gdm_usb.h
+++ b/drivers/staging/gdm72xx/gdm_usb.h
@@ -41,7 +41,7 @@ struct tx_cxt {
 #if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
 	struct list_head	pending_list;
 #endif
-	spinlock_t		lock;
+	spinlock_t		lock; /* Protect structure fields */
 };
 
 struct usb_rx {
@@ -56,7 +56,7 @@ struct usb_rx {
 struct rx_cxt {
 	struct list_head	free_list;
 	struct list_head	used_list;
-	spinlock_t		lock;
+	spinlock_t		lock; /* Protect structure fields */
 };
 
 struct usbwm_dev {
diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
index ba03f9386567acbe140850881bb2ae7ab55feba6..1b3da2ba6ed14710d42fc2c908446ef586bea679 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -45,7 +45,7 @@ static struct {
 	int ref_cnt;
 	struct sock *sock;
 	struct list_head evtq;
-	spinlock_t evt_lock;
+	spinlock_t evt_lock; /*protect structure fields */
 	struct list_head freeq;
 	struct work_struct ws;
 } wm_event;