patch-2.4.27 linux-2.4.27/drivers/usb/drivers.c

• Lines: 30
• Date: 2004-08-07 16:26:05.683389059 -0700
• Orig file: linux-2.4.26/drivers/usb/drivers.c
• Orig date: 2000-04-26 15:22:55.000000000 -0700

diff -urN linux-2.4.26/drivers/usb/drivers.c linux-2.4.27/drivers/usb/drivers.c
@@ -52,9 +52,10 @@
 	struct list_head *tmp = usb_driver_list.next;
 	char *page, *start, *end;
 	ssize_t ret = 0;
-	unsigned int pos, len;
+	loff_t n = *ppos;
+	unsigned int pos = n, len;
 
-	if (*ppos < 0)
+	if (pos != n)
 		return -EINVAL;
 	if (nbytes <= 0)
 		return 0;
@@ -64,7 +65,6 @@
                 return -ENOMEM;
 	start = page;
 	end = page + (PAGE_SIZE - 100);
-	pos = *ppos;
 	for (; tmp != &usb_driver_list; tmp = tmp->next) {
 		struct usb_driver *driver = list_entry(tmp, struct usb_driver, driver_list);
 		int minor = driver->fops ? driver->minor : -1;
@@ -88,7 +88,7 @@
 		if (copy_to_user(buf, page + pos, len))
 			ret = -EFAULT;
 		else
-			*ppos += len;
+			*ppos = pos + len;
 	}
 	free_page((unsigned long)page);
 	return ret;