USB: EHCI: log a warning if ehci-hcd is not loaded first

[deliverable/linux.git] / drivers / usb / core / hcd.c

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index c8035a8216bdb5017435c7ad49a5d555b2cce8e9..fc9018e72a0979718293e8918422fb5f02dd5c36 100644 (file)
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -81,6 +81,10 @@
 
 /*-------------------------------------------------------------------------*/
 
+/* Keep track of which host controller drivers are loaded */
+unsigned long usb_hcds_loaded;
+EXPORT_SYMBOL_GPL(usb_hcds_loaded);
+
 /* host controllers we manage */
 LIST_HEAD (usb_bus_list);
 EXPORT_SYMBOL_GPL (usb_bus_list);