svn commit: r277845 - stable/10/sys/dev/usb

[Hans Petter Selasky]

Author: hselasky
Date: Wed Jan 28 19:41:31 2015
New Revision: 277845
URL: https://svnweb.freebsd.org/changeset/base/277845

Log:
  MFC r277417:
  Fix returned data for the USB_GET_DEV_PORT_PATH IOCTL in particular
  the value returned in the "udp_port_level" field.

Modified:
  stable/10/sys/dev/usb/usb_generic.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/dev/usb/usb_generic.c
==============================================================================
--- stable/10/sys/dev/usb/usb_generic.c	Wed Jan 28 18:45:40 2015	(r277844)
+++ stable/10/sys/dev/usb/usb_generic.c	Wed Jan 28 19:41:31 2015	(r277845)
@@ -1850,14 +1850,13 @@ ugen_get_port_path(struct usb_fifo *f, s
 	if (nlevel > USB_DEVICE_PORT_PATH_MAX)
 		goto error;
 
+	/* store total level of ports */
+	dpp->udp_port_level = nlevel;
+
 	/* store port index array */
 	next = udev;
 	while (next->parent_hub != NULL) {
-		nlevel--;
-
-		dpp->udp_port_no[nlevel] = next->port_no;
-		dpp->udp_port_level = nlevel;
-
+		dpp->udp_port_no[--nlevel] = next->port_no;
 		next = next->parent_hub;
 	}
 	return (0);	/* success */