drivers/net: replace BUG() with BUG_ON() if possible

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index ea3dc038..d649cae 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -686,8 +686,7 @@
 		return;
 	}
 
-	if (!in_interrupt())
-		BUG();
+	BUG_ON(!in_interrupt());
 
 	spin_lock(&priv->driver_lock);