tree 79c51cee65b7d0aca3c20d90c80e5cf474add959
parent 35c036ef4a722e953e17884f4f4325f78eeab475
author Dan Carpenter <dan.carpenter@oracle.com> 1505944426 +0300
committer Trond Myklebust <trond.myklebust@primarydata.com> 1506898290 -0400

NFS: Cleanup error handling in nfs_idmap_request_key()

nfs_idmap_get_desc() can't actually return zero.  But if it did then
we would return ERR_PTR(0) which is NULL and the caller,
nfs_idmap_get_key(), doesn't expect that so it leads to a NULL pointer
dereference.

I've cleaned this up by changing the "<=" to "<" so it's more clear that
we don't return ERR_PTR(0).

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>