expression: make expr_get_parent_expr/stmt() accept NULL arguments
commit20309476f9da10b058b16b788432a52dd8220cd9
authorDan Carpenter <dan.carpenter@oracle.com>
Tue, 29 Aug 2017 19:40:27 +0000 (29 22:40 +0300)
committerDan Carpenter <dan.carpenter@oracle.com>
Tue, 29 Aug 2017 19:40:27 +0000 (29 22:40 +0300)
treead20846e99dff0fb59fff1b5448f1734f1c8df9d
parentbe7a8132719b02be173c5bc34149be39059b64d0
expression: make expr_get_parent_expr/stmt() accept NULL arguments

This is just more convenient.

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