Commit 1e099473 authored Jul 15, 2015 by Igor Mammedov Committed by Michael S. Tsirkin Jul 27, 2015

vhost: fix error handling for memory region alloc



callers of vhost_kvzalloc() expect the same behaviour on
allocation error as from kmalloc/vmalloc i.e. NULL return
value. So just return vzmalloc() returned value instead of
returning ERR_PTR(-ENOMEM)

Fixes: 4de7255f ("vhost: extend memory regions allocation to vmalloc")

Spotted-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

parent 7932c0bd

drivers/vhost/vhost.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -683,11 +683,8 @@ static void *vhost_kvzalloc(unsigned long size)
		{
		void *n = kzalloc(size, GFP_KERNEL \| __GFP_NOWARN \| __GFP_REPEAT);

		if (!n) {
		n = vzalloc(size);
		if (!n)
		return ERR_PTR(-ENOMEM);
		}
		n = vzalloc(size);
		return n;
		}