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vhost: fix return code for log_access_ok()

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

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Dan Carpenter 2010-10-11 19:24:19 +02:00 committed by Michael S. Tsirkin
parent b0057c51db
commit 6d97e55f71
1 changed files with 1 additions and 1 deletions
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drivers/vhost/vhost.c
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@ -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);