[patch 2/2] vhost: fix return code for log_access_ok()
From: Dan Carpenter <hidden>
Date: 2010-10-11 17:24:19
Also in:
kernel-janitors, kvm, virtualization
Subsystem:
the rest, virtio host (vhost) · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
access_ok() returns 1 if it's OK otherwise it should return 0. Signed-off-by: Dan Carpenter <redacted>
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);