symbol.h: let is_ptr_type() take NULL pointers
commitf589fa80289ba9a952b248d0243573221dad71ef
authorDan Carpenter <dan.carpenter@oracle.com>
Tue, 6 Mar 2018 14:17:44 +0000 (6 17:17 +0300)
committerDan Carpenter <dan.carpenter@oracle.com>
Tue, 6 Mar 2018 14:17:44 +0000 (6 17:17 +0300)
tree986bbffd4a4f24d9f7c54cd01fadbb6626f75034
parent215c7ada006d3badc4fc28bd1b8f5f03fddf04b3
symbol.h: let is_ptr_type() take NULL pointers

When I upgraded to the latest Sparse, I think I erased my local patch so
now I get a crashing bug here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
symbol.h