USB: fix __must_check warnings in drivers/usb/core/

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index fd345ad810f..71bbd25a4ed 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1359,7 +1359,7 @@ static int proc_ioctl(struct dev_state *ps, struct usbdevfs_ioctl *ctl)
         /* let kernel drivers try to (re)bind to the interface */
         case USBDEVFS_CONNECT:
                 usb_unlock_device(ps->dev);
-                bus_rescan_devices(intf->dev.bus);
+                retval = bus_rescan_devices(intf->dev.bus);
                 usb_lock_device(ps->dev);
                 break;