Subject: [patch 2/2] vhost: fix return code for log_access_ok()

From: Dan Carpenter <[email-masked]>
Date: Mon, 11 Oct 2010 19:24:19 +0200

access_ok() returns 1 if it's OK otherwise it should return 0.

Signed-off-by: Dan Carpenter <[email-masked]>

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index c2aa12c..f82fe57 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -371,7 +371,7 @@ static int log_access_ok(void __user *log_base, u64 addr, unsigned long sz)
 	/* Make sure 64 bit math will not overflow. */
 	if (a > ULONG_MAX - (unsigned long)log_base ||
 	    a + (unsigned long)log_base > ULONG_MAX)
-		return -EFAULT;
+		return 0;
 
 	return access_ok(VERIFY_WRITE, log_base + a,
 			 (sz + VHOST_PAGE_SIZE * 8 - 1) / VHOST_PAGE_SIZE / 8);