svn commit: r213176 - user/weongyo/usb/sys/dev/usb

[Weongyo Jeong]

Author: weongyo
Date: Sat Sep 25 21:06:53 2010
New Revision: 213176
URL: http://svn.freebsd.org/changeset/base/213176

Log:
  A code cleanup.

Modified:
  user/weongyo/usb/sys/dev/usb/usb_busdma.c

Modified: user/weongyo/usb/sys/dev/usb/usb_busdma.c
==============================================================================
--- user/weongyo/usb/sys/dev/usb/usb_busdma.c	Sat Sep 25 21:02:42 2010	(r213175)
+++ user/weongyo/usb/sys/dev/usb/usb_busdma.c	Sat Sep 25 21:06:53 2010	(r213176)
@@ -84,12 +84,10 @@ usbd_get_page(struct usb_page_cache *pc,
 	struct usb_page *page;
 
 #if USB_HAVE_BUSDMA
-	if (pc->page_start) {
+	if ((page = pc->page_start) != NULL) {
 		USB_ASSERT(pc->buffer != NULL, ("pc->buffer is NULL"));
 		res->buffer = USB_ADD_BYTES(pc->buffer, offset);
 		offset += pc->page_offset_buf;
-		/* compute destination page */
-		page = pc->page_start;
 		if (pc->ismultiseg) {
 			page += (offset / USB_PAGE_SIZE);
 			offset %= USB_PAGE_SIZE;