vmci: type promotion bug in qp_host_get_user_memory()
authorDan Carpenter <dan.carpenter@oracle.com>
Wed, 4 Jul 2018 09:33:34 +0000 (12:33 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 7 Jul 2018 15:32:40 +0000 (17:32 +0200)
commit7fb2fd4e25fc1fb10dcb30b5519de257cfeae84c
tree80dfaaaa1f643321fe6c0af78935a9ac4c2f1646
parentfc82975aea38da8d605ff2fae3f871ac2929b67d
vmci: type promotion bug in qp_host_get_user_memory()

The problem is that if get_user_pages_fast() fails and returns a
negative error code, it gets type promoted to a high positive value and
treated as a success.

Fixes: 06164d2b72aa ("VMCI: queue pairs implementation.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/vmw_vmci/vmci_queue_pair.c