Staging: gdm72xx: Add appropriate comment for spinlock_t definition

Fix checkpatch issue: "CHECK: spinlock_t definition without comment".
Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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)

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;
 };
 

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 {

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 {

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;