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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: 4de7255f7d ("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>
This commit is contained in:
Igor Mammedov 2015-07-15 16:48:50 +02:00 committed by Michael S. Tsirkin
parent 7932c0bd77
commit 1e0994730f
1 changed files with 1 additions and 4 deletions
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5
drivers/vhost/vhost.c
View File

@ -683,11 +683,8 @@ static void *vhost_kvzalloc(unsigned long size)
{
void *n = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
if (!n) {
if (!n)
n = vzalloc(size);
if (!n)
return ERR_PTR(-ENOMEM);
}
return n;
}