tree a072af2954f775be39270f672ad956d0d0b35444
parent cdb2e53fd6dc715c5b45d0967fcb6dc574cb28f8
author Benjamin Coddington <bcodding@redhat.com> 1506081430 -0400
committer Trond Myklebust <trond.myklebust@primarydata.com> 1506898290 -0400

NFS: Fix uninitialized rpc_wait_queue

Michael Sterrett reports a NULL pointer dereference on NFSv3 mounts when
CONFIG_NFS_V4 is not set because the NFS UOC rpc_wait_queue has not been
initialized.  Move the initialization of the queue out of the CONFIG_NFS_V4
conditional setion.

Fixes: 7d6ddf88c4db ("NFS: Add an iocounter wait function for async RPC tasks")
Cc: stable@vger.kernel.org # 4.11+
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>