From: Al Viro <viro@ftp.linux.org.uk>
Date: Sun, 14 Oct 2007 18:34:40 +0000 (+0100)
Subject: fw-cdev __user annotations
X-Git-Tag: v2.6.24-rc1~1317
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ccc9147f6a063c42fef67acff34de18435a4a6b;p=linux-2.6

fw-cdev __user annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 75388641a7..0647130220 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -722,10 +722,11 @@ static int ioctl_queue_iso(struct client *client, void *buffer)
 		buffer_end = 0;
 	}
 
-	if (!access_ok(VERIFY_READ, request->packets, request->size))
+	p = (struct fw_cdev_iso_packet __user *)u64_to_uptr(request->packets);
+
+	if (!access_ok(VERIFY_READ, p, request->size))
 		return -EFAULT;
 
-	p = (struct fw_cdev_iso_packet __user *)u64_to_uptr(request->packets);
 	end = (void __user *)p + request->size;
 	count = 0;
 	while (p < end) {