Merge tag 'dmaengine-5.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma

[linux.git] / drivers / vhost / vhost.c

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 5ace833de74620bf1a089186057d766e7e3def63..351af88231ada1145bfb72326f905bfaac3819ca 100644 (file)
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -911,8 +911,12 @@ static int vhost_new_umem_range(struct vhost_umem *umem,
                                u64 start, u64 size, u64 end,
                                u64 userspace_addr, int perm)
 {
-       struct vhost_umem_node *tmp, *node = kmalloc(sizeof(*node), GFP_ATOMIC);
+       struct vhost_umem_node *tmp, *node;
 
+       if (!size)
+               return -EFAULT;
+
+       node = kmalloc(sizeof(*node), GFP_ATOMIC);
        if (!node)
                return -ENOMEM;