coccinelle/errno-check.cocci - systemd - Git at Google

 @@
 constant c;
 @@
 (
 - errno == -c
 + errno == c
 |
 - errno != -c
 + errno != c
 )
	@@
	constant c;
	@@
	(
	- errno == -c
	+ errno == c
	\|
	- errno != -c
	+ errno != c
	)