staging: gdm72xx: check return value of sscanf

Signed-off-by: Ben Chan <benchan@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
index e5e511585122a3a25c5d6ad203d4c5f185755f3f..3081fd46bbda793f6a5c6922afa44b3c5dd49fd8 100644 (file)
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -291,8 +291,9 @@ static void __gdm_wimax_event_send(struct work_struct *work)
                e = list_entry(wm_event.evtq.next, struct evt_entry, list);
                spin_unlock_irqrestore(&wm_event.evt_lock, flags);
 
-               sscanf(e->dev->name, "wm%d", &idx);
-               netlink_send(wm_event.sock, idx, 0, e->evt_data, e->size);
+               if (sscanf(e->dev->name, "wm%d", &idx) == 1)
+                       netlink_send(wm_event.sock, idx, 0, e->evt_data,
+                                    e->size);
 
                spin_lock_irqsave(&wm_event.evt_lock, flags);
                list_del(&e->list);