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

[Dan Carpenter]

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

Signed-off-by: Dan Carpenter <erro...@gmail.com>

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);
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