From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Wed, 7 Oct 2020 13:26:16 +0000 (+0200)
Subject: coccinelle: check for invalid errno comparisons
X-Git-Tag: v247-rc1~95^2~3
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7e97526421b0a1180fb16fbfcf8a758e48d529e6;p=thirdparty%2Fsystemd.git

coccinelle: check for invalid errno comparisons

Prompted by #15868
---

diff --git a/coccinelle/errno-check.cocci b/coccinelle/errno-check.cocci
new file mode 100644
index 00000000000..709cb4ace6f
--- /dev/null
+++ b/coccinelle/errno-check.cocci
@@ -0,0 +1,10 @@
+@@
+constant c;
+@@
+(
+- errno == -c
++ errno == c
+|
+- errno != -c
++ errno != c
+)