diff options
Diffstat (limited to 'drivers/vhost/vhost.c')
-rw-r--r-- | drivers/vhost/vhost.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 6c31c0c9bbb9..7cd55e078794 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c | |||
@@ -646,8 +646,9 @@ static int set_bit_to_user(int nr, void __user *addr) | |||
646 | int bit = nr + (log % PAGE_SIZE) * 8; | 646 | int bit = nr + (log % PAGE_SIZE) * 8; |
647 | int r; | 647 | int r; |
648 | r = get_user_pages_fast(log, 1, 1, &page); | 648 | r = get_user_pages_fast(log, 1, 1, &page); |
649 | if (r) | 649 | if (r < 0) |
650 | return r; | 650 | return r; |
651 | BUG_ON(r != 1); | ||
651 | base = kmap_atomic(page, KM_USER0); | 652 | base = kmap_atomic(page, KM_USER0); |
652 | set_bit(bit, base); | 653 | set_bit(bit, base); |
653 | kunmap_atomic(base, KM_USER0); | 654 | kunmap_atomic(base, KM_USER0); |