estate: make clone_estate() take a NULL pointer
commit18887f204e743891b470e1d119f5f2f5efd1a3bd
authorDan Carpenter <dan.carpenter@oracle.com>
Tue, 30 Jun 2015 13:58:18 +0000 (30 16:58 +0300)
committerDan Carpenter <dan.carpenter@oracle.com>
Tue, 30 Jun 2015 13:58:18 +0000 (30 16:58 +0300)
treed4819dd10bec393ed3d0ec1c03f2165819817113
parent445591a0240be12e3fa180f249f685e5bc81f0aa
estate: make clone_estate() take a NULL pointer

Sometimes it is useful to clone a NULL estate (which just returns a NULL
as well).  I don't do this in current code but I will in future code.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch_estate.c